115582 has 4 divisors (see below), whose sum is σ = 173376. Its totient is φ = 57790.

The previous prime is 115571. The next prime is 115589. The reversal of 115582 is 285511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 285511 = 53 ⋅5387.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28894 + ... + 28897.

It is an arithmetic number, because the mean of its divisors is an integer number (43344).

2¹¹⁵⁵⁸² is an apocalyptic number.

115582 is a deficient number, since it is larger than the sum of its proper divisors (57794).

115582 is an equidigital number, since it uses as much as digits as its factorization.

115582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57793.

The product of its digits is 400, while the sum is 22.

The square root of 115582 is about 339.9735283813. The cubic root of 115582 is about 48.7113390612.

The spelling of 115582 in words is "one hundred fifteen thousand, five hundred eighty-two".