125690102785 has 16 divisors (see below), whose sum is σ = 166820297616. Its totient is φ = 90308729088.

The previous prime is 125690102777. The next prime is 125690102807. The reversal of 125690102785 is 587201096521.

It is a Cunningham number, because it is equal to 354528²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 1 + 125690102784 = 1^2 + 354528^2 .

It is a cyclic number.

It is not a de Polignac number, because 125690102785 - 2³ = 125690102777 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26128594 + ... + 26133403.

It is an arithmetic number, because the mean of its divisors is an integer number (10426268601).

Almost surely, 2^125690102785 is an apocalyptic number.

It is an amenable number.

125690102785 is a deficient number, since it is larger than the sum of its proper divisors (41130194831).

125690102785 is a wasteful number, since it uses less digits than its factorization.

125690102785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52262052.

The product of its (nonzero) digits is 302400, while the sum is 46.

The spelling of 125690102785 in words is "one hundred twenty-five billion, six hundred ninety million, one hundred two thousand, seven hundred eighty-five".