2256155 has 32 divisors (see below), whose sum is σ = 3317760. Its totient is φ = 1451520.

The previous prime is 2256131. The next prime is 2256169. The reversal of 2256155 is 5516522.

2256155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2256155 - 2⁸ = 2255899 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17702 + ... + 17828.

It is an arithmetic number, because the mean of its divisors is an integer number (103680).

2^2256155 is an apocalyptic number.

2256155 is a deficient number, since it is larger than the sum of its proper divisors (1061605).

2256155 is a wasteful number, since it uses less digits than its factorization.

2256155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179.

The product of its digits is 3000, while the sum is 26.

The square root of 2256155 is about 1502.0502654705. The cubic root of 2256155 is about 131.1564473165.

The spelling of 2256155 in words is "two million, two hundred fifty-six thousand, one hundred fifty-five".