116813819 has 2 divisors, whose sum is σ = 116813820. Its totient is φ = 116813818.

The previous prime is 116813779. The next prime is 116813821. The reversal of 116813819 is 918318611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 116813819 - 2¹² = 116809723 is a prime.

It is a super-2 number, since 2×116813819² = 27290936618729522, which contains 22 as substring.

Together with 116813821, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (116813119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58406909 + 58406910.

It is an arithmetic number, because the mean of its divisors is an integer number (58406910).

Almost surely, 2^116813819 is an apocalyptic number.

116813819 is a deficient number, since it is larger than the sum of its proper divisors (1).

116813819 is an equidigital number, since it uses as much as digits as its factorization.

116813819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 38.

The square root of 116813819 is about 10808.0441801466. The cubic root of 116813819 is about 488.8377549271.

The spelling of 116813819 in words is "one hundred sixteen million, eight hundred thirteen thousand, eight hundred nineteen".