125979 has 12 divisors (see below), whose sum is σ = 195624. Its totient is φ = 71904.

The previous prime is 125963. The next prime is 126001. The reversal of 125979 is 979521.

It is not a de Polignac number, because 125979 - 2⁴ = 125963 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 125979.

It is not an unprimeable number, because it can be changed into a prime (125929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 282 + ... + 575.

It is an arithmetic number, because the mean of its divisors is an integer number (16302).

2¹²⁵⁹⁷⁹ is an apocalyptic number.

125979 is a deficient number, since it is larger than the sum of its proper divisors (69645).

125979 is an equidigital number, since it uses as much as digits as its factorization.

125979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874 (or 867 counting only the distinct ones).

The product of its digits is 5670, while the sum is 33.

The square root of 125979 is about 354.9352053544. The cubic root of 125979 is about 50.1301940294.

The spelling of 125979 in words is "one hundred twenty-five thousand, nine hundred seventy-nine".