125928081 has 8 divisors (see below), whose sum is σ = 186560160. Its totient is φ = 83952036.

The previous prime is 125928031. The next prime is 125928083. The reversal of 125928081 is 180829521.

It is not a de Polignac number, because 125928081 - 2⁶ = 125928017 is a prime.

It is a super-2 number, since 2×125928081² = 31715763168685122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (125928083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2331975 + ... + 2332028.

It is an arithmetic number, because the mean of its divisors is an integer number (23320020).

Almost surely, 2^125928081 is an apocalyptic number.

It is an amenable number.

125928081 is a deficient number, since it is larger than the sum of its proper divisors (60632079).

125928081 is an equidigital number, since it uses as much as digits as its factorization.

125928081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4664012 (or 4664006 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 125928081 is about 11221.7681761833. The cubic root of 125928081 is about 501.2343913813.

The spelling of 125928081 in words is "one hundred twenty-five million, nine hundred twenty-eight thousand, eighty-one".