125017715 has 4 divisors (see below), whose sum is σ = 150021264. Its totient is φ = 100014168.

The previous prime is 125017681. The next prime is 125017721. The reversal of 125017715 is 517710521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125017715 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12501767 + ... + 12501776.

It is an arithmetic number, because the mean of its divisors is an integer number (37505316).

Almost surely, 2^125017715 is an apocalyptic number.

125017715 is a deficient number, since it is larger than the sum of its proper divisors (25003549).

125017715 is an equidigital number, since it uses as much as digits as its factorization.

125017715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25003548.

The product of its (nonzero) digits is 2450, while the sum is 29.

The square root of 125017715 is about 11181.1320983163. The cubic root of 125017715 is about 500.0236188843.

The spelling of 125017715 in words is "one hundred twenty-five million, seventeen thousand, seven hundred fifteen".