612453481 has 4 divisors (see below), whose sum is σ = 622493764. Its totient is φ = 602413200.

The previous prime is 612453461. The next prime is 612453493. The reversal of 612453481 is 184354216.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15139881 + 597313600 = 3891^2 + 24440^2 .

It is a cyclic number.

It is not a de Polignac number, because 612453481 - 2¹³ = 612445289 is a prime.

It is a super-2 number, since 2×612453481² = 750198532778034722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612453461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5020050 + ... + 5020171.

It is an arithmetic number, because the mean of its divisors is an integer number (155623441).

Almost surely, 2^612453481 is an apocalyptic number.

612453481 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

612453481 is a deficient number, since it is larger than the sum of its proper divisors (10040283).

612453481 is a wasteful number, since it uses less digits than its factorization.

612453481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10040282.

The product of its digits is 23040, while the sum is 34.

The square root of 612453481 is about 24747.7974979593. The cubic root of 612453481 is about 849.2281255802.

It can be divided in two parts, 61 and 2453481, that added together give a palindrome (2453542).

The spelling of 612453481 in words is "six hundred twelve million, four hundred fifty-three thousand, four hundred eighty-one".