118369187 has 2 divisors, whose sum is σ = 118369188. Its totient is φ = 118369186.

The previous prime is 118369117. The next prime is 118369189. The reversal of 118369187 is 781963811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 118369187 - 2¹⁸ = 118107043 is a prime.

It is a super-2 number, since 2×118369187² = 28022528862081938, which contains 22 as substring.

Together with 118369189, 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 (118369189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59184593 + 59184594.

It is an arithmetic number, because the mean of its divisors is an integer number (59184594).

Almost surely, 2^118369187 is an apocalyptic number.

118369187 is a deficient number, since it is larger than the sum of its proper divisors (1).

118369187 is an equidigital number, since it uses as much as digits as its factorization.

118369187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 44.

The square root of 118369187 is about 10879.7604293477. The cubic root of 118369187 is about 490.9978098550.

The spelling of 118369187 in words is "one hundred eighteen million, three hundred sixty-nine thousand, one hundred eighty-seven".