139311399150625 has 135 divisors (see below), whose sum is σ = 197181717885999. Its totient is φ = 98340915816000.

The previous prime is 139311399150607. The next prime is 139311399150709. The reversal of 139311399150625 is 526051993113931.

The square root of 139311399150625 is 11803025.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 137602073012881 + 1709326137744 = 11730391^2 + 1307412^2 .

It is not a de Polignac number, because 139311399150625 - 2³⁵ = 139277039412257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 139311399150625.

It is an unprimeable number.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 88227611086 + ... + 88227612664.

Almost surely, 2^{139311399150625} is an apocalyptic number.

139311399150625 is the 11803025-th square number.

139311399150625 is the 5901513-rd centered octagonal number.

It is an amenable number.

139311399150625 is a deficient number, since it is larger than the sum of its proper divisors (57870318735374).

139311399150625 is an frugal number, since it uses more digits than its factorization.

139311399150625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3250 (or 1620 counting only the distinct ones).

The product of its (nonzero) digits is 5904900, while the sum is 58.

The spelling of 139311399150625 in words is "one hundred thirty-nine trillion, three hundred eleven billion, three hundred ninety-nine million, one hundred fifty thousand, six hundred twenty-five".