115931663 has 2 divisors, whose sum is σ = 115931664. Its totient is φ = 115931662.

The previous prime is 115931633. The next prime is 115931681. The reversal of 115931663 is 366139511.

It is a strong prime.

It is an emirp because it is prime and its reverse (366139511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115931663 - 2¹⁴ = 115915279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115931623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57965831 + 57965832.

It is an arithmetic number, because the mean of its divisors is an integer number (57965832).

Almost surely, 2^115931663 is an apocalyptic number.

115931663 is a deficient number, since it is larger than the sum of its proper divisors (1).

115931663 is an equidigital number, since it uses as much as digits as its factorization.

115931663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14580, while the sum is 35.

The square root of 115931663 is about 10767.1566813156. The cubic root of 115931663 is about 487.6041073298.

The spelling of 115931663 in words is "one hundred fifteen million, nine hundred thirty-one thousand, six hundred sixty-three".