115724 has 12 divisors (see below), whose sum is σ = 231504. Its totient is φ = 49584.

The previous prime is 115693. The next prime is 115727. The reversal of 115724 is 427511.

115724 is an admirable number.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 115696 and 115705.

It is not an unprimeable number, because it can be changed into a prime (115727) by changing a digit.

115724 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 in 3 ways as a sum of consecutive naturals, for example, 2039 + ... + 2094.

It is an arithmetic number, because the mean of its divisors is an integer number (19292).

2¹¹⁵⁷²⁴ is an apocalyptic number.

115724 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

115724 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115724 is a wasteful number, since it uses less digits than its factorization.

115724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4144 (or 4142 counting only the distinct ones).

The product of its digits is 280, while the sum is 20.

The square root of 115724 is about 340.1823040665. The cubic root of 115724 is about 48.7312792462.

The spelling of 115724 in words is "one hundred fifteen thousand, seven hundred twenty-four".