115310257 has 2 divisors, whose sum is σ = 115310258. Its totient is φ = 115310256.

The previous prime is 115310233. The next prime is 115310263. The reversal of 115310257 is 752013511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62078641 + 53231616 = 7879^2 + 7296^2 .

It is a cyclic number.

It is not a de Polignac number, because 115310257 - 2¹⁵ = 115277489 is a prime.

It is not a weakly prime, because it can be changed into another prime (115310857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57655128 + 57655129.

It is an arithmetic number, because the mean of its divisors is an integer number (57655129).

Almost surely, 2^115310257 is an apocalyptic number.

It is an amenable number.

115310257 is a deficient number, since it is larger than the sum of its proper divisors (1).

115310257 is an equidigital number, since it uses as much as digits as its factorization.

115310257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 115310257 is about 10738.2613583392. The cubic root of 115310257 is about 486.7313428670.

Adding to 115310257 its reverse (752013511), we get a palindrome (867323768).

The spelling of 115310257 in words is "one hundred fifteen million, three hundred ten thousand, two hundred fifty-seven".