118850809 has 16 divisors (see below), whose sum is σ = 149022720. Its totient is φ = 92082960.

The previous prime is 118850803. The next prime is 118850813. The reversal of 118850809 is 908058811.

It is a cyclic number.

It is not a de Polignac number, because 118850809 - 2⁵ = 118850777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (118850803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9472 + ... + 18094.

It is an arithmetic number, because the mean of its divisors is an integer number (9313920).

Almost surely, 2^118850809 is an apocalyptic number.

It is an amenable number.

118850809 is a deficient number, since it is larger than the sum of its proper divisors (30171911).

118850809 is a wasteful number, since it uses less digits than its factorization.

118850809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8820.

The product of its (nonzero) digits is 23040, while the sum is 40.

The square root of 118850809 is about 10901.8718117578. The cubic root of 118850809 is about 491.6628346856.

The spelling of 118850809 in words is "one hundred eighteen million, eight hundred fifty thousand, eight hundred nine".