12308156 has 12 divisors (see below), whose sum is σ = 24616368. Its totient is φ = 5274912.

The previous prime is 12308141. The next prime is 12308173. The reversal of 12308156 is 65180321.

12308156 is an admirable number.

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, 219761 + ... + 219816.

It is an arithmetic number, because the mean of its divisors is an integer number (2051364).

Almost surely, 2^12308156 is an apocalyptic number.

It is an amenable number.

12308156 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12308156 is a wasteful number, since it uses less digits than its factorization.

12308156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439588 (or 439586 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 12308156 is about 3508.2981629274. The cubic root of 12308156 is about 230.8860341238.

Adding to 12308156 its reverse (65180321), we get a palindrome (77488477).

The spelling of 12308156 in words is "twelve million, three hundred eight thousand, one hundred fifty-six".