118961091 has 24 divisors (see below), whose sum is σ = 177697520. Its totient is φ = 76640256.

The previous prime is 118961081. The next prime is 118961093. The reversal of 118961091 is 190169811.

It is a de Polignac number, because none of the positive numbers 2^k-118961091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118961093) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35955 + ... + 39123.

Almost surely, 2^118961091 is an apocalyptic number.

118961091 is a deficient number, since it is larger than the sum of its proper divisors (58736429).

118961091 is a wasteful number, since it uses less digits than its factorization.

118961091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3315 (or 3312 counting only the distinct ones).

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

The square root of 118961091 is about 10906.9285777436. The cubic root of 118961091 is about 491.8148594496.

The spelling of 118961091 in words is "one hundred eighteen million, nine hundred sixty-one thousand, ninety-one".