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1374475481 = 13217103993
BaseRepresentation
bin101000111101100…
…1101010011011001
310112210022120220022
41101323031103121
510303331203411
6344215440225
746026564101
oct12173152331
93483276808
101374475481
11645945855
12324386075
1318b9b2902
14d078a201
1580a01edb
hex51ecd4d9

1374475481 has 4 divisors (see below), whose sum is σ = 1374592692. Its totient is φ = 1374358272.

The previous prime is 1374475477. The next prime is 1374475493. The reversal of 1374475481 is 1845744731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1845744731 = 5931283809.

It can be written as a sum of positive squares in 2 ways, for example, as 221533456 + 1152942025 = 14884^2 + 33955^2 .

It is a cyclic number.

It is not a de Polignac number, because 1374475481 - 22 = 1374475477 is a prime.

It is a super-2 number, since 2×13744754812 = 3778365695740362722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1374475451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38780 + ... + 65213.

It is an arithmetic number, because the mean of its divisors is an integer number (343648173).

Almost surely, 21374475481 is an apocalyptic number.

It is an amenable number.

1374475481 is a deficient number, since it is larger than the sum of its proper divisors (117211).

1374475481 is a wasteful number, since it uses less digits than its factorization.

1374475481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117210.

The product of its digits is 376320, while the sum is 44.

The square root of 1374475481 is about 37073.9191481019. The cubic root of 1374475481 is about 1111.8486309605.

The spelling of 1374475481 in words is "one billion, three hundred seventy-four million, four hundred seventy-five thousand, four hundred eighty-one".

Divisors: 1 13217 103993 1374475481