139317905528 has 16 divisors (see below), whose sum is σ = 261227243760. Its totient is φ = 69657307200.

The previous prime is 139317905509. The next prime is 139317905663. The reversal of 139317905528 is 825509713931.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 139317905528.

It is a congruent number.

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, 201548 + ... + 565028.

It is an arithmetic number, because the mean of its divisors is an integer number (16326702735).

Almost surely, 2^139317905528 is an apocalyptic number.

It is an amenable number.

139317905528 is a deficient number, since it is larger than the sum of its proper divisors (121909338232).

139317905528 is a wasteful number, since it uses less digits than its factorization.

139317905528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411398 (or 411394 counting only the distinct ones).

The product of its (nonzero) digits is 2041200, while the sum is 53.

The spelling of 139317905528 in words is "one hundred thirty-nine billion, three hundred seventeen million, nine hundred five thousand, five hundred twenty-eight".