125378931 has 8 divisors (see below), whose sum is σ = 167890320. Its totient is φ = 83226752.

The previous prime is 125378923. The next prime is 125378933. The reversal of 125378931 is 139873521.

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

It is a cyclic number.

It is not a de Polignac number, because 125378931 - 2³ = 125378923 is a prime.

It is a super-2 number, since 2×125378931² = 31439752677405522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 125378931.

It is not an unprimeable number, because it can be changed into a prime (125378933) 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, 88986 + ... + 90383.

It is an arithmetic number, because the mean of its divisors is an integer number (20986290).

Almost surely, 2^125378931 is an apocalyptic number.

125378931 is a deficient number, since it is larger than the sum of its proper divisors (42511389).

125378931 is a wasteful number, since it uses less digits than its factorization.

125378931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179605.

The product of its digits is 45360, while the sum is 39.

The square root of 125378931 is about 11197.2733734602. The cubic root of 125378931 is about 500.5047316538.

The spelling of 125378931 in words is "one hundred twenty-five million, three hundred seventy-eight thousand, nine hundred thirty-one".