118455 has 16 divisors (see below), whose sum is σ = 194400. Its totient is φ = 61568.

The previous prime is 118453. The next prime is 118457. The reversal of 118455 is 554811.

It is an interprime number because it is at equal distance from previous prime (118453) and next prime (118457).

It is a cyclic number.

It is not a de Polignac number, because 118455 - 2¹ = 118453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118453) 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, 721 + ... + 869.

It is an arithmetic number, because the mean of its divisors is an integer number (12150).

2¹¹⁸⁴⁵⁵ is an apocalyptic number.

118455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

118455 is a deficient number, since it is larger than the sum of its proper divisors (75945).

118455 is a wasteful number, since it uses less digits than its factorization.

118455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210.

The product of its digits is 800, while the sum is 24.

The square root of 118455 is about 344.1729216542. The cubic root of 118455 is about 49.1116432554. Note that the first 3 decimals are identical.

Multiplying 118455 by its sum of digits (24), we get a triangular number (2842920 = T₂₃₈₄).

The spelling of 118455 in words is "one hundred eighteen thousand, four hundred fifty-five".