125684765 has 8 divisors (see below), whose sum is σ = 157379328. Its totient is φ = 96176080.

The previous prime is 125684749. The next prime is 125684777. The reversal of 125684765 is 567486521.

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

It is not a de Polignac number, because 125684765 - 2⁴ = 125684749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 546341 + ... + 546570.

It is an arithmetic number, because the mean of its divisors is an integer number (19672416).

Almost surely, 2^125684765 is an apocalyptic number.

It is an amenable number.

125684765 is a deficient number, since it is larger than the sum of its proper divisors (31694563).

125684765 is a wasteful number, since it uses less digits than its factorization.

125684765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092939.

The product of its digits is 403200, while the sum is 44.

The square root of 125684765 is about 11210.9216837868. The cubic root of 125684765 is about 500.9113578445.

The spelling of 125684765 in words is "one hundred twenty-five million, six hundred eighty-four thousand, seven hundred sixty-five".