125307684 has 18 divisors (see below), whose sum is σ = 316750070. Its totient is φ = 41769216.

The previous prime is 125307683. The next prime is 125307701. The reversal of 125307684 is 486703521.

It can be written as a sum of positive squares in only one way, i.e., 124947684 + 360000 = 11178^2 + 600^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 3480769 = 125307684 / (1 + 2 + 5 + 3 + 0 + 7 + 6 + 8 + 4).

It is not an unprimeable number, because it can be changed into a prime (125307683) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1740349 + ... + 1740420.

Almost surely, 2^125307684 is an apocalyptic number.

It is an amenable number.

125307684 is an abundant number, since it is smaller than the sum of its proper divisors (191442386).

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

125307684 is a wasteful number, since it uses less digits than its factorization.

125307684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3480779 (or 3480774 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 125307684 is about 11194.0914772035. The cubic root of 125307684 is about 500.4099091904.

The spelling of 125307684 in words is "one hundred twenty-five million, three hundred seven thousand, six hundred eighty-four".