15139368 has 48 divisors (see below), whose sum is σ = 41202720. Its totient is φ = 5021856.

The previous prime is 15139357. The next prime is 15139381. The reversal of 15139368 is 86393151.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20005 + ... + 20747.

It is an arithmetic number, because the mean of its divisors is an integer number (858390).

Almost surely, 2^15139368 is an apocalyptic number.

15139368 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

15139368 is an abundant number, since it is smaller than the sum of its proper divisors (26063352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15139368 is a wasteful number, since it uses less digits than its factorization.

15139368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038 (or 1031 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 15139368 is about 3890.9340780846. The cubic root of 15139368 is about 247.3826563425.

The spelling of 15139368 in words is "fifteen million, one hundred thirty-nine thousand, three hundred sixty-eight".