125270857 has 16 divisors (see below), whose sum is σ = 138476160. Its totient is φ = 112793472.

The previous prime is 125270851. The next prime is 125270861. The reversal of 125270857 is 758072521.

It is not a de Polignac number, because 125270857 - 2⁷ = 125270729 is a prime.

It is a super-2 number, since 2×125270857² = 31385575227028898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125270851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74773 + ... + 76429.

It is an arithmetic number, because the mean of its divisors is an integer number (8654760).

Almost surely, 2^125270857 is an apocalyptic number.

It is an amenable number.

125270857 is a deficient number, since it is larger than the sum of its proper divisors (13205303).

125270857 is a wasteful number, since it uses less digits than its factorization.

125270857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1872.

The product of its (nonzero) digits is 39200, while the sum is 37.

The square root of 125270857 is about 11192.4464260500. The cubic root of 125270857 is about 500.3608821322.

The spelling of 125270857 in words is "one hundred twenty-five million, two hundred seventy thousand, eight hundred fifty-seven".