115291144 has 16 divisors (see below), whose sum is σ = 228887100. Its totient is φ = 54254592.

The previous prime is 115291123. The next prime is 115291151. The reversal of 115291144 is 441192511.

It can be written as a sum of positive squares in 2 ways, for example, as 113678244 + 1612900 = 10662^2 + 1270^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423729 + ... + 424000.

Almost surely, 2^115291144 is an apocalyptic number.

It is an amenable number.

115291144 is a deficient number, since it is larger than the sum of its proper divisors (113595956).

115291144 is a wasteful number, since it uses less digits than its factorization.

115291144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847752 (or 847748 counting only the distinct ones).

The product of its digits is 1440, while the sum is 28.

The square root of 115291144 is about 10737.3713729199. The cubic root of 115291144 is about 486.7044490172.

The spelling of 115291144 in words is "one hundred fifteen million, two hundred ninety-one thousand, one hundred forty-four".