115789 has 4 divisors (see below), whose sum is σ = 117180. Its totient is φ = 114400.

The previous prime is 115783. The next prime is 115793. The reversal of 115789 is 987511.

115789 is nontrivially palindromic in base 4.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 987511 = 7 ⋅141073.

It can be written as a sum of positive squares in 2 ways, for example, as 6889 + 108900 = 83^2 + 330^2 .

It is a cyclic number.

It is not a de Polignac number, because 115789 - 2³ = 115781 is a prime.

It is a fibodiv number, since the Fibonacci-like sequence with seeds 1157 and 89 contains 115789 itself.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 115789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115781) 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, 562 + ... + 739.

It is an arithmetic number, because the mean of its divisors is an integer number (29295).

2¹¹⁵⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

115789 is a deficient number, since it is larger than the sum of its proper divisors (1391).

115789 is an equidigital number, since it uses as much as digits as its factorization.

115789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390.

The product of its digits is 2520, while the sum is 31.

The square root of 115789 is about 340.2778276644. The cubic root of 115789 is about 48.7404013537.

The spelling of 115789 in words is "one hundred fifteen thousand, seven hundred eighty-nine".