139988459597 has 16 divisors (see below), whose sum is σ = 172958720640. Its totient is φ = 110602542528.

The previous prime is 139988459537. The next prime is 139988459599. The reversal of 139988459597 is 795954889931.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139988459597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139988459599) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14218658 + ... + 14228499.

It is an arithmetic number, because the mean of its divisors is an integer number (10809920040).

Almost surely, 2^139988459597 is an apocalyptic number.

It is an amenable number.

139988459597 is a deficient number, since it is larger than the sum of its proper divisors (32970261043).

139988459597 is a wasteful number, since it uses less digits than its factorization.

139988459597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28447220.

The product of its digits is 881798400, while the sum is 77.

The spelling of 139988459597 in words is "one hundred thirty-nine billion, nine hundred eighty-eight million, four hundred fifty-nine thousand, five hundred ninety-seven".