125604123 has 4 divisors (see below), whose sum is σ = 167472168. Its totient is φ = 83736080.

The previous prime is 125604103. The next prime is 125604131. The reversal of 125604123 is 321406521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125604123 - 2⁵ = 125604091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125604093 and 125604102.

It is not an unprimeable number, because it can be changed into a prime (125604103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20934018 + ... + 20934023.

It is an arithmetic number, because the mean of its divisors is an integer number (41868042).

Almost surely, 2^125604123 is an apocalyptic number.

125604123 is a deficient number, since it is larger than the sum of its proper divisors (41868045).

125604123 is an equidigital number, since it uses as much as digits as its factorization.

125604123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41868044.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 125604123 is about 11207.3245246134. The cubic root of 125604123 is about 500.8042031544.

The spelling of 125604123 in words is "one hundred twenty-five million, six hundred four thousand, one hundred twenty-three".