118619091 has 12 divisors (see below), whose sum is σ = 171556632. Its totient is φ = 78978816.

The previous prime is 118619089. The next prime is 118619093. The reversal of 118619091 is 190916811.

It is an interprime number because it is at equal distance from previous prime (118619089) and next prime (118619093).

It is not a de Polignac number, because 118619091 - 2¹ = 118619089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (118619093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 526 + ... + 15411.

It is an arithmetic number, because the mean of its divisors is an integer number (14296386).

Almost surely, 2^118619091 is an apocalyptic number.

118619091 is a deficient number, since it is larger than the sum of its proper divisors (52937541).

118619091 is a wasteful number, since it uses less digits than its factorization.

118619091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16770 (or 16767 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 36.

The square root of 118619091 is about 10891.2391856942. The cubic root of 118619091 is about 491.3431026072.

The spelling of 118619091 in words is "one hundred eighteen million, six hundred nineteen thousand, ninety-one".