115903994 has 16 divisors (see below), whose sum is σ = 185263848. Its totient is φ = 54193152.

The previous prime is 115903993. The next prime is 115904023. The reversal of 115903994 is 499309511.

It can be written as a sum of positive squares in 4 ways, for example, as 91450969 + 24453025 = 9563^2 + 4945^2 .

It is not an unprimeable number, because it can be changed into a prime (115903993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5519 + ... + 16194.

Almost surely, 2^115903994 is an apocalyptic number.

115903994 is a deficient number, since it is larger than the sum of its proper divisors (69359854).

115903994 is a wasteful number, since it uses less digits than its factorization.

115903994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21889.

The product of its (nonzero) digits is 43740, while the sum is 41.

The square root of 115903994 is about 10765.8717250393. The cubic root of 115903994 is about 487.5653126607.

The spelling of 115903994 in words is "one hundred fifteen million, nine hundred three thousand, nine hundred ninety-four".