125660403 has 48 divisors (see below), whose sum is σ = 209454336. Its totient is φ = 74636640.

The previous prime is 125660401. The next prime is 125660459. The reversal of 125660403 is 304066521.

125660403 is a `hidden beast` number, since 1 + 2 + 56 + 604 + 0 + 3 = 666.

It is not a de Polignac number, because 125660403 - 2¹ = 125660401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (125660401) 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 47 ways as a sum of consecutive naturals, for example, 141226 + ... + 142112.

It is an arithmetic number, because the mean of its divisors is an integer number (4363632).

Almost surely, 2^125660403 is an apocalyptic number.

125660403 is a deficient number, since it is larger than the sum of its proper divisors (83793933).

125660403 is an equidigital number, since it uses as much as digits as its factorization.

125660403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966 (or 954 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 125660403 is about 11209.8351013742. The cubic root of 125660403 is about 500.8789911768.

The spelling of 125660403 in words is "one hundred twenty-five million, six hundred sixty thousand, four hundred three".