118159999 has 2 divisors, whose sum is σ = 118160000. Its totient is φ = 118159998.

The previous prime is 118159967. The next prime is 118160023. The reversal of 118159999 is 999951811.

It is a strong prime.

It is an emirp because it is prime and its reverse (999951811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118159999 - 2⁵ = 118159967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118159099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59079999 + 59080000.

It is an arithmetic number, because the mean of its divisors is an integer number (59080000).

Almost surely, 2^118159999 is an apocalyptic number.

118159999 is a deficient number, since it is larger than the sum of its proper divisors (1).

118159999 is an equidigital number, since it uses as much as digits as its factorization.

118159999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 262440, while the sum is 52.

The square root of 118159999 is about 10870.1425473634. The cubic root of 118159999 is about 490.7084006002.

The spelling of 118159999 in words is "one hundred eighteen million, one hundred fifty-nine thousand, nine hundred ninety-nine".