125920929 has 16 divisors (see below), whose sum is σ = 181238400. Its totient is φ = 77527296.

The previous prime is 125920913. The next prime is 125920931. The reversal of 125920929 is 929029521.

It is not a de Polignac number, because 125920929 - 2⁴ = 125920913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125920909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29464 + ... + 33465.

It is an arithmetic number, because the mean of its divisors is an integer number (11327400).

Almost surely, 2^125920929 is an apocalyptic number.

It is an amenable number.

125920929 is a deficient number, since it is larger than the sum of its proper divisors (55317471).

125920929 is a wasteful number, since it uses less digits than its factorization.

125920929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62984.

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 125920929 is about 11221.4495053001. The cubic root of 125920929 is about 501.2249021125.

The spelling of 125920929 in words is "one hundred twenty-five million, nine hundred twenty thousand, nine hundred twenty-nine".