1351389501 has 80 divisors (see below), whose sum is σ = 2527873920. Its totient is φ = 698958720.

The previous prime is 1351389499. The next prime is 1351389569. The reversal of 1351389501 is 1059831531.

1351389501 is a `hidden beast` number, since 13 + 5 + 138 + 9 + 501 = 666.

It is not a de Polignac number, because 1351389501 - 2¹ = 1351389499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351389301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2425915 + ... + 2426471.

It is an arithmetic number, because the mean of its divisors is an integer number (31598424).

It is a vampire number, since it can be written as 35091 ⋅ 38511 (with its own digits).

Almost surely, 2^1351389501 is an apocalyptic number.

1351389501 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1351389501 is the 18381-st decagonal number.

It is an amenable number.

1351389501 is a deficient number, since it is larger than the sum of its proper divisors (1176484419).

1351389501 is a wasteful number, since it uses less digits than its factorization.

1351389501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976 (or 967 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 36.

The square root of 1351389501 is about 36761.2499923493. The cubic root of 1351389501 is about 1105.5885022000.

The spelling of 1351389501 in words is "one billion, three hundred fifty-one million, three hundred eighty-nine thousand, five hundred one".