125660765 has 8 divisors (see below), whose sum is σ = 150896088. Its totient is φ = 100459840.

The previous prime is 125660761. The next prime is 125660807. The reversal of 125660765 is 567066521.

It can be written as a sum of positive squares in 4 ways, for example, as 9947716 + 115713049 = 3154^2 + 10757^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125660765 - 2² = 125660761 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125660761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275 + ... + 15855.

It is an arithmetic number, because the mean of its divisors is an integer number (18862011).

Almost surely, 2^125660765 is an apocalyptic number.

It is an amenable number.

125660765 is a deficient number, since it is larger than the sum of its proper divisors (25235323).

125660765 is a wasteful number, since it uses less digits than its factorization.

125660765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17199.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 125660765 is about 11209.8512478980. The cubic root of 125660765 is about 500.8794721505.

The spelling of 125660765 in words is "one hundred twenty-five million, six hundred sixty thousand, seven hundred sixty-five".