115211144 has 16 divisors (see below), whose sum is σ = 216457920. Its totient is φ = 57489040.

The previous prime is 115211143. The next prime is 115211149. The reversal of 115211144 is 441112511.

It is not an unprimeable number, because it can be changed into a prime (115211141) 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 3 ways as a sum of consecutive naturals, for example, 10292 + ... + 18339.

It is an arithmetic number, because the mean of its divisors is an integer number (13528620).

Almost surely, 2^115211144 is an apocalyptic number.

It is an amenable number.

115211144 is a deficient number, since it is larger than the sum of its proper divisors (101246776).

115211144 is a wasteful number, since it uses less digits than its factorization.

115211144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29140 (or 29136 counting only the distinct ones).

The product of its digits is 160, while the sum is 20.

The square root of 115211144 is about 10733.6454198935. The cubic root of 115211144 is about 486.5918489685.

Adding to 115211144 its reverse (441112511), we get a palindrome (556323655).

The spelling of 115211144 in words is "one hundred fifteen million, two hundred eleven thousand, one hundred forty-four".