125297815 has 8 divisors (see below), whose sum is σ = 155207808. Its totient is φ = 97004640.

The previous prime is 125297801. The next prime is 125297827. The reversal of 125297815 is 518792521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125297815 - 2⁷ = 125297687 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 7 ways as a sum of consecutive naturals, for example, 404032 + ... + 404341.

It is an arithmetic number, because the mean of its divisors is an integer number (19400976).

Almost surely, 2^125297815 is an apocalyptic number.

125297815 is a deficient number, since it is larger than the sum of its proper divisors (29909993).

125297815 is an equidigital number, since it uses as much as digits as its factorization.

125297815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808409.

The product of its digits is 50400, while the sum is 40.

The square root of 125297815 is about 11193.6506556172. The cubic root of 125297815 is about 500.3967717278.

The spelling of 125297815 in words is "one hundred twenty-five million, two hundred ninety-seven thousand, eight hundred fifteen".