125947685 has 4 divisors (see below), whose sum is σ = 151137228. Its totient is φ = 100758144.

The previous prime is 125947673. The next prime is 125947709. The reversal of 125947685 is 586749521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 586749521 = 691 ⋅849131.

It can be written as a sum of positive squares in 2 ways, for example, as 87928129 + 38019556 = 9377^2 + 6166^2 .

It is a cyclic number.

It is not a de Polignac number, because 125947685 - 2²⁰ = 124899109 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 3 ways as a sum of consecutive naturals, for example, 12594764 + ... + 12594773.

It is an arithmetic number, because the mean of its divisors is an integer number (37784307).

Almost surely, 2^125947685 is an apocalyptic number.

It is an amenable number.

125947685 is a deficient number, since it is larger than the sum of its proper divisors (25189543).

125947685 is an equidigital number, since it uses as much as digits as its factorization.

125947685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25189542.

The product of its digits is 604800, while the sum is 47.

The square root of 125947685 is about 11222.6416230761. The cubic root of 125947685 is about 501.2604001134.

The spelling of 125947685 in words is "one hundred twenty-five million, nine hundred forty-seven thousand, six hundred eighty-five".