125129152645 has 16 divisors (see below), whose sum is σ = 171618179328. Its totient is φ = 85796605440.

The previous prime is 125129152639. The next prime is 125129152669. The reversal of 125129152645 is 546251921521.

It is not a de Polignac number, because 125129152645 - 2¹⁹ = 125128628357 is a prime.

It is a Duffinian number.

It is a congruent 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, 386872 + ... + 632398.

It is an arithmetic number, because the mean of its divisors is an integer number (10726136208).

Almost surely, 2^125129152645 is an apocalyptic number.

It is an amenable number.

125129152645 is a deficient number, since it is larger than the sum of its proper divisors (46489026683).

125129152645 is a wasteful number, since it uses less digits than its factorization.

125129152645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260100.

The product of its digits is 216000, while the sum is 43.

The spelling of 125129152645 in words is "one hundred twenty-five billion, one hundred twenty-nine million, one hundred fifty-two thousand, six hundred forty-five".