125397955 has 16 divisors (see below), whose sum is σ = 157515840. Its totient is φ = 95653888.

The previous prime is 125397931. The next prime is 125397959. The reversal of 125397955 is 559793521.

It is a cyclic number.

It is not a de Polignac number, because 125397955 - 2⁹ = 125397443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125397959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39051 + ... + 42139.

It is an arithmetic number, because the mean of its divisors is an integer number (9844740).

Almost surely, 2^125397955 is an apocalyptic number.

125397955 is a deficient number, since it is larger than the sum of its proper divisors (32117885).

125397955 is a wasteful number, since it uses less digits than its factorization.

125397955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3470.

The product of its digits is 425250, while the sum is 46.

The square root of 125397955 is about 11198.1228337610. The cubic root of 125397955 is about 500.5300445736.

The spelling of 125397955 in words is "one hundred twenty-five million, three hundred ninety-seven thousand, nine hundred fifty-five".