115996 has 12 divisors (see below), whose sum is σ = 207648. Its totient is φ = 56672.

The previous prime is 115987. The next prime is 116009. The reversal of 115996 is 699511.

115996 = T₁₃₃ + T₁₃₄ + ... + T₁₄₄.

It is a congruent number.

It is an unprimeable number.

115996 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121 + ... + 496.

It is an arithmetic number, because the mean of its divisors is an integer number (17304).

2¹¹⁵⁹⁹⁶ is an apocalyptic number.

It is an amenable number.

115996 is a deficient number, since it is larger than the sum of its proper divisors (91652).

115996 is a wasteful number, since it uses less digits than its factorization.

115996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668 (or 666 counting only the distinct ones).

The product of its digits is 2430, while the sum is 31.

The square root of 115996 is about 340.5818550657. The cubic root of 115996 is about 48.7694290297.

It can be divided in two parts, 115 and 996, that added together give a palindrome (1111).

The spelling of 115996 in words is "one hundred fifteen thousand, nine hundred ninety-six".