118999919 has 2 divisors, whose sum is σ = 118999920. Its totient is φ = 118999918.

The previous prime is 118999901. The next prime is 118999927. The reversal of 118999919 is 919999811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 118999919 - 2⁸ = 118999663 is a prime.

It is a super-2 number, since 2×118999919² = 28321961444013122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118999019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59499959 + 59499960.

It is an arithmetic number, because the mean of its divisors is an integer number (59499960).

Almost surely, 2^118999919 is an apocalyptic number.

118999919 is a deficient number, since it is larger than the sum of its proper divisors (1).

118999919 is an equidigital number, since it uses as much as digits as its factorization.

118999919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 472392, while the sum is 56.

The square root of 118999919 is about 10908.7084020062. The cubic root of 118999919 is about 491.8683618454.

The spelling of 118999919 in words is "one hundred eighteen million, nine hundred ninety-nine thousand, nine hundred nineteen".