2256317 has 8 divisors (see below), whose sum is σ = 2606016. Its totient is φ = 1913472.

The previous prime is 2256313. The next prime is 2256341. The reversal of 2256317 is 7136522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2256317 - 2² = 2256313 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2256311) 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 7 ways as a sum of consecutive naturals, for example, 983 + ... + 2340.

It is an arithmetic number, because the mean of its divisors is an integer number (325752).

2^2256317 is an apocalyptic number.

It is an amenable number.

2256317 is a deficient number, since it is larger than the sum of its proper divisors (349699).

2256317 is an equidigital number, since it uses as much as digits as its factorization.

2256317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3427.

The product of its digits is 2520, while the sum is 26.

The square root of 2256317 is about 1502.1041907937. The cubic root of 2256317 is about 131.1595864088.

The spelling of 2256317 in words is "two million, two hundred fifty-six thousand, three hundred seventeen".