12356157 has 12 divisors (see below), whose sum is σ = 18109280. Its totient is φ = 7488360.

The previous prime is 12356147. The next prime is 12356173. The reversal of 12356157 is 75165321.

12356157 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12356157 - 2¹¹ = 12354109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12356107) 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 11 ways as a sum of consecutive naturals, for example, 16657 + ... + 17382.

Almost surely, 2^12356157 is an apocalyptic number.

It is an amenable number.

12356157 is a deficient number, since it is larger than the sum of its proper divisors (5753123).

12356157 is a wasteful number, since it uses less digits than its factorization.

12356157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34064 (or 34053 counting only the distinct ones).

The product of its digits is 6300, while the sum is 30.

The square root of 12356157 is about 3515.1325721799. The cubic root of 12356157 is about 231.1857915722.

It can be divided in two parts, 123 and 56157, that added together give a triangular number (56280 = T₃₃₅).

The spelling of 12356157 in words is "twelve million, three hundred fifty-six thousand, one hundred fifty-seven".