115998851 has 2 divisors, whose sum is σ = 115998852. Its totient is φ = 115998850.

The previous prime is 115998833. The next prime is 115998853. The reversal of 115998851 is 158899511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115998851 - 2¹⁸ = 115736707 is a prime.

Together with 115998853, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 115998796 and 115998805.

It is not a weakly prime, because it can be changed into another prime (115998853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57999425 + 57999426.

It is an arithmetic number, because the mean of its divisors is an integer number (57999426).

Almost surely, 2^115998851 is an apocalyptic number.

115998851 is a deficient number, since it is larger than the sum of its proper divisors (1).

115998851 is an equidigital number, since it uses as much as digits as its factorization.

115998851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 47.

The square root of 115998851 is about 10770.2762731510. The cubic root of 115998851 is about 487.6982858515.

The spelling of 115998851 in words is "one hundred fifteen million, nine hundred ninety-eight thousand, eight hundred fifty-one".