12809252 has 48 divisors (see below), whose sum is σ = 24820992. Its totient is φ = 5765760.

The previous prime is 12809221. The next prime is 12809281. The reversal of 12809252 is 25290821.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180377 + ... + 180447.

It is an arithmetic number, because the mean of its divisors is an integer number (517104).

Almost surely, 2^12809252 is an apocalyptic number.

It is an amenable number.

12809252 is a deficient number, since it is larger than the sum of its proper divisors (12011740).

12809252 is a wasteful number, since it uses less digits than its factorization.

12809252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 12809252 is about 3579.0015367418. The cubic root of 12809252 is about 233.9777659250.

The spelling of 12809252 in words is "twelve million, eight hundred nine thousand, two hundred fifty-two".