125315013 has 24 divisors (see below), whose sum is σ = 177430176. Its totient is φ = 78660000.

The previous prime is 125314961. The next prime is 125315039. The reversal of 125315013 is 310513521.

It is not a de Polignac number, because 125315013 - 2⁸ = 125314757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125315413) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 271603 + ... + 272063.

It is an arithmetic number, because the mean of its divisors is an integer number (7392924).

Almost surely, 2^125315013 is an apocalyptic number.

It is an amenable number.

125315013 is a deficient number, since it is larger than the sum of its proper divisors (52115163).

125315013 is a wasteful number, since it uses less digits than its factorization.

125315013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753 (or 734 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 125315013 is about 11194.4188326148. The cubic root of 125315013 is about 500.4196649974.

Adding to 125315013 its reverse (310513521), we get a palindrome (435828534).

The spelling of 125315013 in words is "one hundred twenty-five million, three hundred fifteen thousand, thirteen".