12297156 has 24 divisors (see below), whose sum is σ = 28922880. Its totient is φ = 4066272.

The previous prime is 12297151. The next prime is 12297179. The reversal of 12297156 is 65179221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12297151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2511 + ... + 5558.

It is an arithmetic number, because the mean of its divisors is an integer number (1205120).

Almost surely, 2^12297156 is an apocalyptic number.

It is an amenable number.

12297156 is an abundant number, since it is smaller than the sum of its proper divisors (16625724).

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

12297156 is a wasteful number, since it uses less digits than its factorization.

12297156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8203 (or 8201 counting only the distinct ones).

The product of its digits is 7560, while the sum is 33.

The square root of 12297156 is about 3506.7301008204. The cubic root of 12297156 is about 230.8172314167.

It can be divided in two parts, 1229 and 7156, that added together give a triangular number (8385 = T₁₂₉).

The spelling of 12297156 in words is "twelve million, two hundred ninety-seven thousand, one hundred fifty-six".