118147389 has 24 divisors (see below), whose sum is σ = 166430880. Its totient is φ = 74539872.

The previous prime is 118147387. The next prime is 118147397. The reversal of 118147389 is 983741811.

It is not a de Polignac number, because 118147389 - 2¹ = 118147387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 118147389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118147387) 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, 172642 + ... + 173324.

It is an arithmetic number, because the mean of its divisors is an integer number (6934620).

Almost surely, 2^118147389 is an apocalyptic number.

It is an amenable number.

118147389 is a deficient number, since it is larger than the sum of its proper divisors (48283491).

118147389 is a wasteful number, since it uses less digits than its factorization.

118147389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841 (or 818 counting only the distinct ones).

The product of its digits is 48384, while the sum is 42.

The square root of 118147389 is about 10869.5625026953. The cubic root of 118147389 is about 490.6909438943.

The spelling of 118147389 in words is "one hundred eighteen million, one hundred forty-seven thousand, three hundred eighty-nine".