125115501513 has 4 divisors (see below), whose sum is σ = 166820668688. Its totient is φ = 83410334340.

The previous prime is 125115501503. The next prime is 125115501529. The reversal of 125115501513 is 315105511521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 125115501513 - 2⁸ = 125115501257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (125115501503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20852583583 + ... + 20852583588.

It is an arithmetic number, because the mean of its divisors is an integer number (41705167172).

Almost surely, 2^125115501513 is an apocalyptic number.

It is an amenable number.

125115501513 is a deficient number, since it is larger than the sum of its proper divisors (41705167175).

125115501513 is an equidigital number, since it uses as much as digits as its factorization.

125115501513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41705167174.

The product of its (nonzero) digits is 3750, while the sum is 30.

The spelling of 125115501513 in words is "one hundred twenty-five billion, one hundred fifteen million, five hundred one thousand, five hundred thirteen".