125992865 has 16 divisors (see below), whose sum is σ = 160548480. Its totient is φ = 94590720.

The previous prime is 125992861. The next prime is 125992871. The reversal of 125992865 is 568299521.

It is not a de Polignac number, because 125992865 - 2² = 125992861 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125992861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30260 + ... + 34170.

It is an arithmetic number, because the mean of its divisors is an integer number (10034280).

Almost surely, 2^125992865 is an apocalyptic number.

It is an amenable number.

125992865 is a deficient number, since it is larger than the sum of its proper divisors (34555615).

125992865 is a wasteful number, since it uses less digits than its factorization.

125992865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4312.

The product of its digits is 388800, while the sum is 47.

The square root of 125992865 is about 11224.6543376623. The cubic root of 125992865 is about 501.3203303864.

The spelling of 125992865 in words is "one hundred twenty-five million, nine hundred ninety-two thousand, eight hundred sixty-five".