15239120902 has 16 divisors (see below), whose sum is σ = 23913882720. Its totient is φ = 7269530752.

The previous prime is 15239120893. The next prime is 15239120983. The reversal of 15239120902 is 20902193251.

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, 407923 + ... + 443710.

It is an arithmetic number, because the mean of its divisors is an integer number (1494617670).

Almost surely, 2^15239120902 is an apocalyptic number.

15239120902 is a deficient number, since it is larger than the sum of its proper divisors (8674761818).

15239120902 is a wasteful number, since it uses less digits than its factorization.

15239120902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852047.

The product of its (nonzero) digits is 9720, while the sum is 34.

The spelling of 15239120902 in words is "fifteen billion, two hundred thirty-nine million, one hundred twenty thousand, nine hundred two".