2256131308 has 6 divisors (see below), whose sum is σ = 3948229796. Its totient is φ = 1128065652.

The previous prime is 2256131281. The next prime is 2256131309. The reversal of 2256131308 is 8031316522.

It is a self number, because there is not a number n which added to its sum of digits gives 2256131308.

It is not an unprimeable number, because it can be changed into a prime (2256131309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282016410 + ... + 282016417.

Almost surely, 2^2256131308 is an apocalyptic number.

It is an amenable number.

2256131308 is a deficient number, since it is larger than the sum of its proper divisors (1692098488).

2256131308 is a wasteful number, since it uses less digits than its factorization.

2256131308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564032831 (or 564032829 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 2256131308 is about 47498.7505940946. The cubic root of 2256131308 is about 1311.5598822137.

The spelling of 2256131308 in words is "two billion, two hundred fifty-six million, one hundred thirty-one thousand, three hundred eight".