125013665 has 32 divisors (see below), whose sum is σ = 182787840. Its totient is φ = 80123904.

The previous prime is 125013661. The next prime is 125013677. The reversal of 125013665 is 566310521.

It is not a de Polignac number, because 125013665 - 2² = 125013661 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (125013661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96341 + ... + 97629.

It is an arithmetic number, because the mean of its divisors is an integer number (5712120).

Almost surely, 2^125013665 is an apocalyptic number.

It is an amenable number.

125013665 is a deficient number, since it is larger than the sum of its proper divisors (57774175).

125013665 is a wasteful number, since it uses less digits than its factorization.

125013665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 125013665 is about 11180.9509881763. The cubic root of 125013665 is about 500.0182193361.

The spelling of 125013665 in words is "one hundred twenty-five million, thirteen thousand, six hundred sixty-five".