2315311157 has 2 divisors, whose sum is σ = 2315311158. Its totient is φ = 2315311156.

The previous prime is 2315311093. The next prime is 2315311199. The reversal of 2315311157 is 7511135132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1794284881 + 521026276 = 42359^2 + 22826^2 .

It is a cyclic number.

It is not a de Polignac number, because 2315311157 - 2⁶ = 2315311093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2315311357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1157655578 + 1157655579.

It is an arithmetic number, because the mean of its divisors is an integer number (1157655579).

Almost surely, 2^2315311157 is an apocalyptic number.

It is an amenable number.

2315311157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2315311157 is an equidigital number, since it uses as much as digits as its factorization.

2315311157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3150, while the sum is 29.

The square root of 2315311157 is about 48117.6802952927. The cubic root of 2315311157 is about 1322.9287505095.

Adding to 2315311157 its reverse (7511135132), we get a palindrome (9826446289).

The spelling of 2315311157 in words is "two billion, three hundred fifteen million, three hundred eleven thousand, one hundred fifty-seven".