123575428 has 12 divisors (see below), whose sum is σ = 217163520. Its totient is φ = 61528712.

The previous prime is 123575399. The next prime is 123575437. The reversal of 123575428 is 824575321.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63676 + ... + 65587.

It is an arithmetic number, because the mean of its divisors is an integer number (18096960).

Almost surely, 2^123575428 is an apocalyptic number.

It is an amenable number.

123575428 is a deficient number, since it is larger than the sum of its proper divisors (93588092).

123575428 is a wasteful number, since it uses less digits than its factorization.

123575428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129506 (or 129504 counting only the distinct ones).

The product of its digits is 67200, while the sum is 37.

The square root of 123575428 is about 11116.4485335920. The cubic root of 123575428 is about 498.0933089676.

The spelling of 123575428 in words is "one hundred twenty-three million, five hundred seventy-five thousand, four hundred twenty-eight".