125918879 has 2 divisors, whose sum is σ = 125918880. Its totient is φ = 125918878.

The previous prime is 125918861. The next prime is 125918887. The reversal of 125918879 is 978819521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125918879 - 2²⁰ = 124870303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125918279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62959439 + 62959440.

It is an arithmetic number, because the mean of its divisors is an integer number (62959440).

Almost surely, 2^125918879 is an apocalyptic number.

125918879 is a deficient number, since it is larger than the sum of its proper divisors (1).

125918879 is an equidigital number, since it uses as much as digits as its factorization.

125918879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 50.

The square root of 125918879 is about 11221.3581620052. The cubic root of 125918879 is about 501.2221821076. Note that the first 3 decimals are identical.

The spelling of 125918879 in words is "one hundred twenty-five million, nine hundred eighteen thousand, eight hundred seventy-nine".