118724 has 12 divisors (see below), whose sum is σ = 211344. Its totient is φ = 58344.

The previous prime is 118717. The next prime is 118739. The reversal of 118724 is 427811.

Added to its reverse (427811) it gives a triangular number (546535 = T₁₀₄₅).

It is a self number, because there is not a number n which added to its sum of digits gives 118724.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47 + ... + 489.

It is an arithmetic number, because the mean of its divisors is an integer number (17612).

2¹¹⁸⁷²⁴ is an apocalyptic number.

It is an amenable number.

118724 is a deficient number, since it is larger than the sum of its proper divisors (92620).

118724 is a wasteful number, since it uses less digits than its factorization.

118724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514 (or 512 counting only the distinct ones).

The product of its digits is 448, while the sum is 23.

The square root of 118724 is about 344.5634919721. The cubic root of 118724 is about 49.1487911014.

Adding to 118724 its reverse (427811), we get a triangular number (546535 = T₁₀₄₅).

The spelling of 118724 in words is "one hundred eighteen thousand, seven hundred twenty-four".