115415144 has 16 divisors (see below), whose sum is σ = 233050020. Its totient is φ = 53268480.

The previous prime is 115415143. The next prime is 115415191. The reversal of 115415144 is 441514511.

It can be written as a sum of positive squares in 2 ways, for example, as 83356900 + 32058244 = 9130^2 + 5662^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (115415143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554777 + ... + 554984.

Almost surely, 2^115415144 is an apocalyptic number.

It is an amenable number.

115415144 is an abundant number, since it is smaller than the sum of its proper divisors (117634876).

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

115415144 is a wasteful number, since it uses less digits than its factorization.

115415144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109780 (or 1109776 counting only the distinct ones).

The product of its digits is 1600, while the sum is 26.

The square root of 115415144 is about 10743.1440463209. The cubic root of 115415144 is about 486.8788761987.

Adding to 115415144 its reverse (441514511), we get a palindrome (556929655).

The spelling of 115415144 in words is "one hundred fifteen million, four hundred fifteen thousand, one hundred forty-four".