115867 has 4 divisors (see below), whose sum is σ = 117040. Its totient is φ = 114696.

The previous prime is 115861. The next prime is 115873. The reversal of 115867 is 768511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 768511 = 409 ⋅1879.

It is an interprime number because it is at equal distance from previous prime (115861) and next prime (115873).

It is a cyclic number.

It is not a de Polignac number, because 115867 - 2³ = 115859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115861) 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, 423 + ... + 640.

It is an arithmetic number, because the mean of its divisors is an integer number (29260).

2¹¹⁵⁸⁶⁷ is an apocalyptic number.

115867 is a deficient number, since it is larger than the sum of its proper divisors (1173).

115867 is a wasteful number, since it uses less digits than its factorization.

115867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172.

The product of its digits is 1680, while the sum is 28.

The square root of 115867 is about 340.3924205972. The cubic root of 115867 is about 48.7513433774.

It can be divided in two parts, 1158 and 67, that added together give a triangular number (1225 = T₄₉).

The spelling of 115867 in words is "one hundred fifteen thousand, eight hundred sixty-seven".