118553 has 4 divisors (see below), whose sum is σ = 119808. Its totient is φ = 117300.

The previous prime is 118549. The next prime is 118571. The reversal of 118553 is 355811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 118553 - 2² = 118549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 473 + ... + 678.

It is an arithmetic number, because the mean of its divisors is an integer number (29952).

2¹¹⁸⁵⁵³ is an apocalyptic number.

It is an amenable number.

118553 is a deficient number, since it is larger than the sum of its proper divisors (1255).

118553 is a wasteful number, since it uses less digits than its factorization.

118553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254.

The product of its digits is 600, while the sum is 23.

The square root of 118553 is about 344.3152625139. The cubic root of 118553 is about 49.1251831774.

The spelling of 118553 in words is "one hundred eighteen thousand, five hundred fifty-three".