118507 has 4 divisors (see below), whose sum is σ = 125496. Its totient is φ = 111520.

The previous prime is 118493. The next prime is 118529. The reversal of 118507 is 705811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 705811 = 71 ⋅9941.

It is a de Polignac number, because none of the positive numbers 2^k-118507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118907) 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, 3469 + ... + 3502.

It is an arithmetic number, because the mean of its divisors is an integer number (31374).

2¹¹⁸⁵⁰⁷ is an apocalyptic number.

118507 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

118507 is a deficient number, since it is larger than the sum of its proper divisors (6989).

118507 is an equidigital number, since it uses as much as digits as its factorization.

118507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6988.

The product of its (nonzero) digits is 280, while the sum is 22.

The square root of 118507 is about 344.2484567867. The cubic root of 118507 is about 49.1188286334.

It can be divided in two parts, 118 and 507, that added together give a 4-th power (625 = 5⁴).

The spelling of 118507 in words is "one hundred eighteen thousand, five hundred seven".