125752979 has 8 divisors (see below), whose sum is σ = 138544560. Its totient is φ = 113188000.

The previous prime is 125752933. The next prime is 125752981. The reversal of 125752979 is 979257521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125752979 - 2²⁰ = 124704403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125752909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55484 + ... + 57705.

It is an arithmetic number, because the mean of its divisors is an integer number (17318070).

Almost surely, 2^125752979 is an apocalyptic number.

125752979 is a deficient number, since it is larger than the sum of its proper divisors (12791581).

125752979 is a wasteful number, since it uses less digits than its factorization.

125752979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113301.

The product of its digits is 396900, while the sum is 47.

The square root of 125752979 is about 11213.9635722611. The cubic root of 125752979 is about 501.0019627999.

The spelling of 125752979 in words is "one hundred twenty-five million, seven hundred fifty-two thousand, nine hundred seventy-nine".