115406563 has 2 divisors, whose sum is σ = 115406564. Its totient is φ = 115406562.

The previous prime is 115406549. The next prime is 115406579. The reversal of 115406563 is 365604511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115406563 - 2²¹ = 113309411 is a prime.

It is not a weakly prime, because it can be changed into another prime (115406063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57703281 + 57703282.

It is an arithmetic number, because the mean of its divisors is an integer number (57703282).

Almost surely, 2^115406563 is an apocalyptic number.

115406563 is a deficient number, since it is larger than the sum of its proper divisors (1).

115406563 is an equidigital number, since it uses as much as digits as its factorization.

115406563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 115406563 is about 10742.7446679142. The cubic root of 115406563 is about 486.8668095812.

The spelling of 115406563 in words is "one hundred fifteen million, four hundred six thousand, five hundred sixty-three".