118989563 has 32 divisors (see below), whose sum is σ = 155320320. Its totient is φ = 88452000.

The previous prime is 118989491. The next prime is 118989599. The reversal of 118989563 is 365989811.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-118989563 is a prime.

It is a super-2 number, since 2×118989563² = 28317032205861938, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (118989263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 188258 + ... + 188888.

It is an arithmetic number, because the mean of its divisors is an integer number (4853760).

Almost surely, 2^118989563 is an apocalyptic number.

118989563 is a deficient number, since it is larger than the sum of its proper divisors (36330757).

118989563 is a wasteful number, since it uses less digits than its factorization.

118989563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759.

The product of its digits is 466560, while the sum is 50.

The square root of 118989563 is about 10908.2337250354. The cubic root of 118989563 is about 491.8540931060.

The spelling of 118989563 in words is "one hundred eighteen million, nine hundred eighty-nine thousand, five hundred sixty-three".