123133504 has 28 divisors (see below), whose sum is σ = 263140444. Its totient is φ = 56830464.

The previous prime is 123133487. The next prime is 123133511. The reversal of 123133504 is 405331321.

It can be written as a sum of positive squares in 2 ways, for example, as 64641600 + 58491904 = 8040^2 + 7648^2 .

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, 73167 + ... + 74830.

It is an arithmetic number, because the mean of its divisors is an integer number (9397873).

Almost surely, 2^123133504 is an apocalyptic number.

It is an amenable number.

123133504 is an abundant number, since it is smaller than the sum of its proper divisors (140006940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123133504 is a wasteful number, since it uses less digits than its factorization.

123133504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148022 (or 148012 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 123133504 is about 11096.5536992347. The cubic root of 123133504 is about 497.4988480062.

Adding to 123133504 its reverse (405331321), we get a palindrome (528464825).

The spelling of 123133504 in words is "one hundred twenty-three million, one hundred thirty-three thousand, five hundred four".