125936397 has 8 divisors (see below), whose sum is σ = 186572480. Its totient is φ = 83957580.

The previous prime is 125936309. The next prime is 125936399. The reversal of 125936397 is 793639521.

125936397 is a `hidden beast` number, since 1 + 2 + 5 + 9 + 3 + 639 + 7 = 666.

It is not a de Polignac number, because 125936397 - 2¹⁸ = 125674253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125936399) 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, 2332129 + ... + 2332182.

It is an arithmetic number, because the mean of its divisors is an integer number (23321560).

Almost surely, 2^125936397 is an apocalyptic number.

It is an amenable number.

125936397 is a deficient number, since it is larger than the sum of its proper divisors (60636083).

125936397 is an equidigital number, since it uses as much as digits as its factorization.

125936397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4664320 (or 4664314 counting only the distinct ones).

The product of its digits is 306180, while the sum is 45.

The square root of 125936397 is about 11222.1386999092. The cubic root of 125936397 is about 501.2454245928.

The spelling of 125936397 in words is "one hundred twenty-five million, nine hundred thirty-six thousand, three hundred ninety-seven".