12609252 has 18 divisors (see below), whose sum is σ = 31873478. Its totient is φ = 4203072.

The previous prime is 12609251. The next prime is 12609271. The reversal of 12609252 is 25290621.

12609252 is a `hidden beast` number, since 1 + 2 + 609 + 2 + 52 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10929636 + 1679616 = 3306^2 + 1296^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12609251) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 175093 + ... + 175164.

Almost surely, 2^12609252 is an apocalyptic number.

12609252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12609252 is an abundant number, since it is smaller than the sum of its proper divisors (19264226).

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

12609252 is a wasteful number, since it uses less digits than its factorization.

12609252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350267 (or 350262 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 12609252 is about 3550.9508585730. The cubic root of 12609252 is about 232.7536184922.

Adding to 12609252 its reverse (25290621), we get a palindrome (37899873).

The spelling of 12609252 in words is "twelve million, six hundred nine thousand, two hundred fifty-two".