115722 has 16 divisors (see below), whose sum is σ = 257280. Its totient is φ = 38556.

The previous prime is 115693. The next prime is 115727. The reversal of 115722 is 227511.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 115695 and 115704.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1018 + ... + 1125.

It is an arithmetic number, because the mean of its divisors is an integer number (16080).

2¹¹⁵⁷²² is an apocalyptic number.

115722 is an abundant number, since it is smaller than the sum of its proper divisors (141558).

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

115722 is a wasteful number, since it uses less digits than its factorization.

115722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2154 (or 2148 counting only the distinct ones).

The product of its digits is 140, while the sum is 18.

The square root of 115722 is about 340.1793644535. The cubic root of 115722 is about 48.7309985118.

The spelling of 115722 in words is "one hundred fifteen thousand, seven hundred twenty-two".