115742 has 8 divisors (see below), whose sum is σ = 189432. Its totient is φ = 52600.

The previous prime is 115741. The next prime is 115751. The reversal of 115742 is 247511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 115742.

It is not an unprimeable number, because it can be changed into a prime (115741) 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, 2609 + ... + 2652.

It is an arithmetic number, because the mean of its divisors is an integer number (23679).

2¹¹⁵⁷⁴² is an apocalyptic number.

115742 is a deficient number, since it is larger than the sum of its proper divisors (73690).

115742 is a wasteful number, since it uses less digits than its factorization.

115742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5274.

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

The square root of 115742 is about 340.2087594404. The cubic root of 115742 is about 48.7338057102.

Subtracting 115742 from its reverse (247511), we obtain a square (131769 = 363²).

The spelling of 115742 in words is "one hundred fifteen thousand, seven hundred forty-two".