115678 has 4 divisors (see below), whose sum is σ = 173520. Its totient is φ = 57838.

The previous prime is 115663. The next prime is 115679. The reversal of 115678 is 876511.

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: 876511 = 73 ⋅12007.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115679) 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, 28918 + ... + 28921.

It is an arithmetic number, because the mean of its divisors is an integer number (43380).

2¹¹⁵⁶⁷⁸ is an apocalyptic number.

115678 is a deficient number, since it is larger than the sum of its proper divisors (57842).

115678 is an equidigital number, since it uses as much as digits as its factorization.

115678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57841.

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

The square root of 115678 is about 340.1146865397. The cubic root of 115678 is about 48.7248215367.

The spelling of 115678 in words is "one hundred fifteen thousand, six hundred seventy-eight".