115312553 has 2 divisors, whose sum is σ = 115312554. Its totient is φ = 115312552.

The previous prime is 115312543. The next prime is 115312579. The reversal of 115312553 is 355213511.

It is a happy number.

It is an a-pointer prime, because the next prime (115312579) can be obtained adding 115312553 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113145769 + 2166784 = 10637^2 + 1472^2 .

It is a cyclic number.

It is not a de Polignac number, because 115312553 - 2⁴ = 115312537 is a prime.

It is not a weakly prime, because it can be changed into another prime (115312543) 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, 57656276 + 57656277.

It is an arithmetic number, because the mean of its divisors is an integer number (57656277).

Almost surely, 2^115312553 is an apocalyptic number.

It is an amenable number.

115312553 is a deficient number, since it is larger than the sum of its proper divisors (1).

115312553 is an equidigital number, since it uses as much as digits as its factorization.

115312553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2250, while the sum is 26.

The square root of 115312553 is about 10738.3682652440. The cubic root of 115312553 is about 486.7345733624.

The spelling of 115312553 in words is "one hundred fifteen million, three hundred twelve thousand, five hundred fifty-three".