115288308 has 18 divisors (see below), whose sum is σ = 291423314. Its totient is φ = 38429424.

The previous prime is 115288297. The next prime is 115288367. The reversal of 115288308 is 803882511.

It can be written as a sum of positive squares in only one way, i.e., 106750224 + 8538084 = 10332^2 + 2922^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 3202453 = 115288308 / (1 + 1 + 5 + 2 + 8 + 8 + 3 + 0 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1601191 + ... + 1601262.

Almost surely, 2^115288308 is an apocalyptic number.

115288308 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

115288308 is an abundant number, since it is smaller than the sum of its proper divisors (176135006).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115288308 is a wasteful number, since it uses less digits than its factorization.

115288308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3202463 (or 3202458 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The square root of 115288308 is about 10737.2393099903. The cubic root of 115288308 is about 486.7004582362.

The spelling of 115288308 in words is "one hundred fifteen million, two hundred eighty-eight thousand, three hundred eight".