118559591 has 2 divisors, whose sum is σ = 118559592. Its totient is φ = 118559590.

The previous prime is 118559561. The next prime is 118559653. The reversal of 118559591 is 195955811.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 118559591 - 2¹⁴ = 118543207 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118559501) 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, 59279795 + 59279796.

It is an arithmetic number, because the mean of its divisors is an integer number (59279796).

Almost surely, 2^118559591 is an apocalyptic number.

118559591 is a deficient number, since it is larger than the sum of its proper divisors (1).

118559591 is an equidigital number, since it uses as much as digits as its factorization.

118559591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81000, while the sum is 44.

The square root of 118559591 is about 10888.5072897987. The cubic root of 118559591 is about 491.2609353837.

The spelling of 118559591 in words is "one hundred eighteen million, five hundred fifty-nine thousand, five hundred ninety-one".