12157456 has 40 divisors (see below), whose sum is σ = 24633344. Its totient is φ = 5806080.

The previous prime is 12157429. The next prime is 12157459. The reversal of 12157456 is 65475121.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (12157459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62896 + ... + 63088.

Almost surely, 2^12157456 is an apocalyptic number.

12157456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12157456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12316672).

12157456 is an abundant number, since it is smaller than the sum of its proper divisors (12475888).

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

12157456 is a wasteful number, since it uses less digits than its factorization.

12157456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359 (or 353 counting only the distinct ones).

The product of its digits is 8400, while the sum is 31.

The square root of 12157456 is about 3486.7543647352. The cubic root of 12157456 is about 229.9398456422.

The spelling of 12157456 in words is "twelve million, one hundred fifty-seven thousand, four hundred fifty-six".