2256159 has 4 divisors (see below), whose sum is σ = 3008216. Its totient is φ = 1504104.

The previous prime is 2256131. The next prime is 2256169. The reversal of 2256159 is 9516522.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2256159 - 2⁵ = 2256127 is a prime.

It is a super-3 number, since 3×2256159³ = 34453263287333483037, which contains 333 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2256119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376024 + ... + 376029.

It is an arithmetic number, because the mean of its divisors is an integer number (752054).

2^2256159 is an apocalyptic number.

2256159 is a deficient number, since it is larger than the sum of its proper divisors (752057).

2256159 is an equidigital number, since it uses as much as digits as its factorization.

2256159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752056.

The product of its digits is 5400, while the sum is 30.

The square root of 2256159 is about 1502.0515969833. The cubic root of 2256159 is about 131.1565248268.

It can be divided in two parts, 2256 and 159, that added together give a triangular number (2415 = T₆₉).

The spelling of 2256159 in words is "two million, two hundred fifty-six thousand, one hundred fifty-nine".