125125015 has 16 divisors (see below), whose sum is σ = 159268032. Its totient is φ = 94042624.

The previous prime is 125125001. The next prime is 125125027. The reversal of 125125015 is 510521521.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 125125015 - 2⁵ = 125124983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66822 + ... + 68668.

It is an arithmetic number, because the mean of its divisors is an integer number (9954252).

Almost surely, 2^125125015 is an apocalyptic number.

125125015 is a deficient number, since it is larger than the sum of its proper divisors (34143017).

125125015 is a wasteful number, since it uses less digits than its factorization.

125125015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2666.

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 125125015 is about 11185.9293310838. The cubic root of 125125015 is about 500.1666311286.

Adding to 125125015 its reverse (510521521), we get a palindrome (635646536).

The spelling of 125125015 in words is "one hundred twenty-five million, one hundred twenty-five thousand, fifteen".