15135631136 has 24 divisors (see below), whose sum is σ = 29904335244. Its totient is φ = 7540879360.

The previous prime is 15135631127. The next prime is 15135631141. The reversal of 15135631136 is 63113653151.

It can be written as a sum of positive squares in 2 ways, for example, as 12178446736 + 2957184400 = 110356^2 + 54380^2 .

It is a junction number, because it is equal to n+sod(n) for n = 15135631096 and 15135631105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 832625 + ... + 850608.

Almost surely, 2^15135631136 is an apocalyptic number.

15135631136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

15135631136 is a deficient number, since it is larger than the sum of its proper divisors (14768704108).

15135631136 is a wasteful number, since it uses less digits than its factorization.

15135631136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683524 (or 1683516 counting only the distinct ones).

The product of its digits is 24300, while the sum is 35.

The spelling of 15135631136 in words is "fifteen billion, one hundred thirty-five million, six hundred thirty-one thousand, one hundred thirty-six".