115401863 has 2 divisors, whose sum is σ = 115401864. Its totient is φ = 115401862.

The previous prime is 115401791. The next prime is 115401887. The reversal of 115401863 is 368104511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115401863 - 2¹⁸ = 115139719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115401263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57700931 + 57700932.

It is an arithmetic number, because the mean of its divisors is an integer number (57700932).

Almost surely, 2^115401863 is an apocalyptic number.

115401863 is a deficient number, since it is larger than the sum of its proper divisors (1).

115401863 is an equidigital number, since it uses as much as digits as its factorization.

115401863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 115401863 is about 10742.5259133967. The cubic root of 115401863 is about 486.8602001793.

The spelling of 115401863 in words is "one hundred fifteen million, four hundred one thousand, eight hundred sixty-three".