2256151237 has 2 divisors, whose sum is σ = 2256151238. Its totient is φ = 2256151236.

The previous prime is 2256151229. The next prime is 2256151273. The reversal of 2256151237 is 7321516522.

Together with next prime (2256151273) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1222271521 + 1033879716 = 34961^2 + 32154^2 .

It is a cyclic number.

It is not a de Polignac number, because 2256151237 - 2³ = 2256151229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2256151207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1128075618 + 1128075619.

It is an arithmetic number, because the mean of its divisors is an integer number (1128075619).

Almost surely, 2^2256151237 is an apocalyptic number.

It is an amenable number.

2256151237 is a deficient number, since it is larger than the sum of its proper divisors (1).

2256151237 is an equidigital number, since it uses as much as digits as its factorization.

2256151237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25200, while the sum is 34.

The square root of 2256151237 is about 47498.9603780967. The cubic root of 2256151237 is about 1311.5637439865.

Adding to 2256151237 its reverse (7321516522), we get a palindrome (9577667759).

The spelling of 2256151237 in words is "two billion, two hundred fifty-six million, one hundred fifty-one thousand, two hundred thirty-seven".