115281128 has 8 divisors (see below), whose sum is σ = 216152130. Its totient is φ = 57640560.

The previous prime is 115281091. The next prime is 115281137. The reversal of 115281128 is 821182511.

It can be written as a sum of positive squares in only one way, i.e., 96079204 + 19201924 = 9802^2 + 4382^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 115281128.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7205063 + ... + 7205078.

Almost surely, 2^115281128 is an apocalyptic number.

It is an amenable number.

115281128 is a deficient number, since it is larger than the sum of its proper divisors (100871002).

115281128 is a wasteful number, since it uses less digits than its factorization.

115281128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14410147 (or 14410143 counting only the distinct ones).

The product of its digits is 1280, while the sum is 29.

The square root of 115281128 is about 10736.9049544084. The cubic root of 115281128 is about 486.6903543442.

The spelling of 115281128 in words is "one hundred fifteen million, two hundred eighty-one thousand, one hundred twenty-eight".