2256123 has 8 divisors (see below), whose sum is σ = 3039568. Its totient is φ = 1488384.

The previous prime is 2256119. The next prime is 2256127. The reversal of 2256123 is 3216522.

It is an interprime number because it is at equal distance from previous prime (2256119) and next prime (2256127).

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

It is not a de Polignac number, because 2256123 - 2² = 2256119 is a prime.

It is a super-2 number, since 2×2256123² = 10180181982258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2256123.

It is not an unprimeable number, because it can be changed into a prime (2256127) 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, 3586 + ... + 4167.

It is an arithmetic number, because the mean of its divisors is an integer number (379946).

2^2256123 is an apocalyptic number.

2256123 is a deficient number, since it is larger than the sum of its proper divisors (783445).

2256123 is an equidigital number, since it uses as much as digits as its factorization.

2256123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7853.

The product of its digits is 720, while the sum is 21.

The square root of 2256123 is about 1502.0396133258. The cubic root of 2256123 is about 131.1558272311.

The spelling of 2256123 in words is "two million, two hundred fifty-six thousand, one hundred twenty-three".