125634580 has 12 divisors (see below), whose sum is σ = 263832660. Its totient is φ = 50253824.

The previous prime is 125634557. The next prime is 125634589. The reversal of 125634580 is 85436521.

It can be written as a sum of positive squares in 2 ways, for example, as 14837904 + 110796676 = 3852^2 + 10526^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125634589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3140845 + ... + 3140884.

It is an arithmetic number, because the mean of its divisors is an integer number (21986055).

Almost surely, 2^125634580 is an apocalyptic number.

125634580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125634580 is an abundant number, since it is smaller than the sum of its proper divisors (138198080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125634580 is a wasteful number, since it uses less digits than its factorization.

125634580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6281738 (or 6281736 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 125634580 is about 11208.6832411305. The cubic root of 125634580 is about 500.8446788982.

The spelling of 125634580 in words is "one hundred twenty-five million, six hundred thirty-four thousand, five hundred eighty".