118564 has 6 divisors (see below), whose sum is σ = 207494. Its totient is φ = 59280.

The previous prime is 118549. The next prime is 118571. The reversal of 118564 is 465811.

It can be written as a sum of positive squares in only one way, i.e., 116964 + 1600 = 342^2 + 40^2 .

It is a super-4 number, since 4×118564⁴ (a number of 21 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

118564 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14817 + ... + 14824.

2¹¹⁸⁵⁶⁴ is an apocalyptic number.

It is an amenable number.

118564 is a deficient number, since it is larger than the sum of its proper divisors (88930).

118564 is a wasteful number, since it uses less digits than its factorization.

118564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29645 (or 29643 counting only the distinct ones).

The product of its digits is 960, while the sum is 25.

The square root of 118564 is about 344.3312358762. The cubic root of 118564 is about 49.1267024987.

The spelling of 118564 in words is "one hundred eighteen thousand, five hundred sixty-four".