118690945 has 4 divisors (see below), whose sum is σ = 142429140. Its totient is φ = 94952752.

The previous prime is 118690937. The next prime is 118690951. The reversal of 118690945 is 549096811.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59954049 + 58736896 = 7743^2 + 7664^2 .

It is a cyclic number.

It is not a de Polignac number, because 118690945 - 2³ = 118690937 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11869090 + ... + 11869099.

It is an arithmetic number, because the mean of its divisors is an integer number (35607285).

Almost surely, 2^118690945 is an apocalyptic number.

It is an amenable number.

118690945 is a deficient number, since it is larger than the sum of its proper divisors (23738195).

118690945 is an equidigital number, since it uses as much as digits as its factorization.

118690945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23738194.

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 118690945 is about 10894.5373926569. The cubic root of 118690945 is about 491.4422936134.

The spelling of 118690945 in words is "one hundred eighteen million, six hundred ninety thousand, nine hundred forty-five".