2256156 has 54 divisors (see below), whose sum is σ = 6639360. Its totient is φ = 644112.

The previous prime is 2256131. The next prime is 2256169. The reversal of 2256156 is 6516522.

2256156 is nontrivially palindromic in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1125 + ... + 2403.

2^2256156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2256156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3319680).

2256156 is an abundant number, since it is smaller than the sum of its proper divisors (4383204).

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

2256156 is a wasteful number, since it uses less digits than its factorization.

2256156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303 (or 1291 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 2256156 is about 1502.0505983488. The cubic root of 2256156 is about 131.1564666941.

The spelling of 2256156 in words is "two million, two hundred fifty-six thousand, one hundred fifty-six".