115809268 has 24 divisors (see below), whose sum is σ = 205248512. Its totient is φ = 57171744.

The previous prime is 115809263. The next prime is 115809289. The reversal of 115809268 is 862908511.

It is a self number, because there is not a number n which added to its sum of digits gives 115809268.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115809263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140305 + ... + 141127.

Almost surely, 2^115809268 is an apocalyptic number.

It is an amenable number.

115809268 is a deficient number, since it is larger than the sum of its proper divisors (89439244).

115809268 is a wasteful number, since it uses less digits than its factorization.

115809268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231 (or 1229 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 40.

The square root of 115809268 is about 10761.4714607251. The cubic root of 115809268 is about 487.4324506888.

The spelling of 115809268 in words is "one hundred fifteen million, eight hundred nine thousand, two hundred sixty-eight".