15139136 has 14 divisors (see below), whose sum is σ = 30041850. Its totient is φ = 7569536.

The previous prime is 15139121. The next prime is 15139141. The reversal of 15139136 is 63193151.

It can be written as a sum of positive squares in only one way, i.e., 14868736 + 270400 = 3856^2 + 520^2 .

It is a junction number, because it is equal to n+sod(n) for n = 15139099 and 15139108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118211 + ... + 118338.

Almost surely, 2^15139136 is an apocalyptic number.

15139136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

15139136 is a deficient number, since it is larger than the sum of its proper divisors (14902714).

15139136 is an equidigital number, since it uses as much as digits as its factorization.

15139136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236561 (or 236551 counting only the distinct ones).

The product of its digits is 2430, while the sum is 29.

The square root of 15139136 is about 3890.9042650777. The cubic root of 15139136 is about 247.3813926819.

The spelling of 15139136 in words is "fifteen million, one hundred thirty-nine thousand, one hundred thirty-six".