125765879 has 2 divisors, whose sum is σ = 125765880. Its totient is φ = 125765878.

The previous prime is 125765851. The next prime is 125765947. The reversal of 125765879 is 978567521.

It is a weak prime.

It is an emirp because it is prime and its reverse (978567521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125765879 - 2⁸ = 125765623 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125761879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62882939 + 62882940.

It is an arithmetic number, because the mean of its divisors is an integer number (62882940).

Almost surely, 2^125765879 is an apocalyptic number.

125765879 is a deficient number, since it is larger than the sum of its proper divisors (1).

125765879 is an equidigital number, since it uses as much as digits as its factorization.

125765879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1058400, while the sum is 50.

The square root of 125765879 is about 11214.5387332694. The cubic root of 125765879 is about 501.0190934858.

The spelling of 125765879 in words is "one hundred twenty-five million, seven hundred sixty-five thousand, eight hundred seventy-nine".