118213389 has 12 divisors (see below), whose sum is σ = 195146016. Its totient is φ = 67550472.

The previous prime is 118213357. The next prime is 118213423. The reversal of 118213389 is 983312811.

It is not a de Polignac number, because 118213389 - 2⁵ = 118213357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118213339) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 938139 + ... + 938264.

It is an arithmetic number, because the mean of its divisors is an integer number (16262168).

Almost surely, 2^118213389 is an apocalyptic number.

It is an amenable number.

118213389 is a deficient number, since it is larger than the sum of its proper divisors (76932627).

118213389 is a wasteful number, since it uses less digits than its factorization.

118213389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1876416 (or 1876413 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 118213389 is about 10872.5980795760. The cubic root of 118213389 is about 490.7822975105.

The spelling of 118213389 in words is "one hundred eighteen million, two hundred thirteen thousand, three hundred eighty-nine".