118633389 has 16 divisors (see below), whose sum is σ = 182378112. Its totient is φ = 67189248.

The previous prime is 118633387. The next prime is 118633391. The reversal of 118633389 is 983336811.

It is an interprime number because it is at equal distance from previous prime (118633387) and next prime (118633391).

It is not a de Polignac number, because 118633389 - 2¹ = 118633387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 118633389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118633387) 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, 22624 + ... + 27369.

It is an arithmetic number, because the mean of its divisors is an integer number (11398632).

Almost surely, 2^118633389 is an apocalyptic number.

It is an amenable number.

118633389 is a deficient number, since it is larger than the sum of its proper divisors (63744723).

118633389 is a wasteful number, since it uses less digits than its factorization.

118633389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50116.

The product of its digits is 93312, while the sum is 42.

The square root of 118633389 is about 10891.8955650520. The cubic root of 118633389 is about 491.3628435032.

The spelling of 118633389 in words is "one hundred eighteen million, six hundred thirty-three thousand, three hundred eighty-nine".