118663619 has 2 divisors, whose sum is σ = 118663620. Its totient is φ = 118663618.

The previous prime is 118663603. The next prime is 118663627. The reversal of 118663619 is 916366811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 118663619 - 2⁴ = 118663603 is a prime.

It is a super-2 number, since 2×118663619² = 28162108948354322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (118663639) 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, 59331809 + 59331810.

It is an arithmetic number, because the mean of its divisors is an integer number (59331810).

Almost surely, 2^118663619 is an apocalyptic number.

118663619 is a deficient number, since it is larger than the sum of its proper divisors (1).

118663619 is an equidigital number, since it uses as much as digits as its factorization.

118663619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 41.

The square root of 118663619 is about 10893.2832057190. The cubic root of 118663619 is about 491.4045760975.

The spelling of 118663619 in words is "one hundred eighteen million, six hundred sixty-three thousand, six hundred nineteen".