115642999 has 2 divisors, whose sum is σ = 115643000. Its totient is φ = 115642998.

The previous prime is 115642997. The next prime is 115643041. The reversal of 115642999 is 999246511.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (999246511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115642999 - 2¹ = 115642997 is a prime.

Together with 115642997, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115642997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57821499 + 57821500.

It is an arithmetic number, because the mean of its divisors is an integer number (57821500).

Almost surely, 2^115642999 is an apocalyptic number.

115642999 is a deficient number, since it is larger than the sum of its proper divisors (1).

115642999 is an equidigital number, since it uses as much as digits as its factorization.

115642999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 174960, while the sum is 46.

The square root of 115642999 is about 10753.7434877349. The cubic root of 115642999 is about 487.1990677473.

The spelling of 115642999 in words is "one hundred fifteen million, six hundred forty-two thousand, nine hundred ninety-nine".