2311256 has 8 divisors (see below), whose sum is σ = 4333620. Its totient is φ = 1155624.

The previous prime is 2311249. The next prime is 2311289. The reversal of 2311256 is 6521132.

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144446 + ... + 144461.

2^2311256 is an apocalyptic number.

It is an amenable number.

2311256 is a deficient number, since it is larger than the sum of its proper divisors (2022364).

2311256 is a wasteful number, since it uses less digits than its factorization.

2311256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288913 (or 288909 counting only the distinct ones).

The product of its digits is 360, while the sum is 20.

The square root of 2311256 is about 1520.2815528710. The cubic root of 2311256 is about 132.2155950302.

Adding to 2311256 its reverse (6521132), we get a palindrome (8832388).

The spelling of 2311256 in words is "two million, three hundred eleven thousand, two hundred fifty-six".