125431012 has 24 divisors (see below), whose sum is σ = 251830656. Its totient is φ = 53548608.

The previous prime is 125430997. The next prime is 125431021. The reversal of 125431012 is 210134521.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1153 + ... + 15880.

It is an arithmetic number, because the mean of its divisors is an integer number (10492944).

Almost surely, 2^125431012 is an apocalyptic number.

It is an amenable number.

125431012 is an abundant number, since it is smaller than the sum of its proper divisors (126399644).

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

125431012 is a wasteful number, since it uses less digits than its factorization.

125431012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17307 (or 17305 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 125431012 is about 11199.5987428122. The cubic root of 125431012 is about 500.5740234087.

Adding to 125431012 its reverse (210134521), we get a palindrome (335565533).

The spelling of 125431012 in words is "one hundred twenty-five million, four hundred thirty-one thousand, twelve".