12135504 has 20 divisors (see below), whose sum is σ = 31350176. Its totient is φ = 4045152.

The previous prime is 12135499. The next prime is 12135521. The reversal of 12135504 is 40553121.

It is a congruent number.

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, 126364 + ... + 126459.

Almost surely, 2^12135504 is an apocalyptic number.

It is an amenable number.

12135504 is an abundant number, since it is smaller than the sum of its proper divisors (19214672).

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

12135504 is a wasteful number, since it uses less digits than its factorization.

12135504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252834 (or 252828 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 12135504 is about 3483.6050292764. The cubic root of 12135504 is about 229.8013659960.

Adding to 12135504 its reverse (40553121), we get a palindrome (52688625).

The spelling of 12135504 in words is "twelve million, one hundred thirty-five thousand, five hundred four".