15139502 has 16 divisors (see below), whose sum is σ = 26010240. Its totient is φ = 6474168.

The previous prime is 15139493. The next prime is 15139511. The reversal of 15139502 is 20593151.

15139502 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (15139493) and next prime (15139511).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7793 + ... + 9539.

It is an arithmetic number, because the mean of its divisors is an integer number (1625640).

Almost surely, 2^15139502 is an apocalyptic number.

15139502 is a deficient number, since it is larger than the sum of its proper divisors (10870738).

15139502 is a wasteful number, since it uses less digits than its factorization.

15139502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2375.

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 15139502 is about 3890.9512975621. The cubic root of 15139502 is about 247.3833862095.

The spelling of 15139502 in words is "fifteen million, one hundred thirty-nine thousand, five hundred two".