125979069 has 4 divisors (see below), whose sum is σ = 167972096. Its totient is φ = 83986044.

The previous prime is 125979031. The next prime is 125979089. The reversal of 125979069 is 960979521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 125979069 - 2¹⁶ = 125913533 is a prime.

It is a super-2 number, since 2×125979069² = 31741451652213522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125979089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20996509 + ... + 20996514.

It is an arithmetic number, because the mean of its divisors is an integer number (41993024).

Almost surely, 2^125979069 is an apocalyptic number.

It is an amenable number.

125979069 is a deficient number, since it is larger than the sum of its proper divisors (41993027).

125979069 is an equidigital number, since it uses as much as digits as its factorization.

125979069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41993026.

The product of its (nonzero) digits is 306180, while the sum is 48.

The square root of 125979069 is about 11224.0397807563. The cubic root of 125979069 is about 501.3020318165.

The spelling of 125979069 in words is "one hundred twenty-five million, nine hundred seventy-nine thousand, sixty-nine".