118819 has 2 divisors, whose sum is σ = 118820. Its totient is φ = 118818.

The previous prime is 118801. The next prime is 118831. The reversal of 118819 is 918811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 118819 - 2⁵ = 118787 is a prime.

It is a super-2 number, since 2×118819² = 28235909522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (118219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59409 + 59410.

It is an arithmetic number, because the mean of its divisors is an integer number (59410).

2¹¹⁸⁸¹⁹ is an apocalyptic number.

118819 is a deficient number, since it is larger than the sum of its proper divisors (1).

118819 is an equidigital number, since it uses as much as digits as its factorization.

118819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 28.

The square root of 118819 is about 344.7013199859. The cubic root of 118819 is about 49.1618968209.

It can be divided in two parts, 11881 and 9, that multiplied together give a square (106929 = 327²).

The spelling of 118819 in words is "one hundred eighteen thousand, eight hundred nineteen".