125112515 has 16 divisors (see below), whose sum is σ = 164838240. Its totient is φ = 90405120.

The previous prime is 125112451. The next prime is 125112523. The reversal of 125112515 is 515211521.

It is not a de Polignac number, because 125112515 - 2⁶ = 125112451 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1391 + ... + 15879.

It is an arithmetic number, because the mean of its divisors is an integer number (10302390).

Almost surely, 2^125112515 is an apocalyptic number.

125112515 is a deficient number, since it is larger than the sum of its proper divisors (39725725).

125112515 is a wasteful number, since it uses less digits than its factorization.

125112515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14662.

The product of its digits is 500, while the sum is 23.

The square root of 125112515 is about 11185.3705794667. The cubic root of 125112515 is about 500.1499750105.

The spelling of 125112515 in words is "one hundred twenty-five million, one hundred twelve thousand, five hundred fifteen".