125644023 has 36 divisors (see below), whose sum is σ = 191053200. Its totient is φ = 79548480.

The previous prime is 125643977. The next prime is 125644027. The reversal of 125644023 is 320446521.

125644023 is a `hidden beast` number, since 1 + 256 + 4 + 402 + 3 = 666.

It is not a de Polignac number, because 125644023 - 2¹⁰ = 125642999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125644027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 631278 + ... + 631476.

Almost surely, 2^125644023 is an apocalyptic number.

125644023 is a deficient number, since it is larger than the sum of its proper divisors (65409177).

125644023 is a wasteful number, since it uses less digits than its factorization.

125644023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340 (or 306 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 125644023 is about 11209.1044691358. The cubic root of 125644023 is about 500.8572268178.

The spelling of 125644023 in words is "one hundred twenty-five million, six hundred forty-four thousand, twenty-three".