115213124 has 24 divisors (see below), whose sum is σ = 219292248. Its totient is φ = 52646400.

The previous prime is 115213123. The next prime is 115213139. The reversal of 115213124 is 421312511.

It can be written as a sum of positive squares in 4 ways, for example, as 10355524 + 104857600 = 3218^2 + 10240^2 .

It is a junction number, because it is equal to n+sod(n) for n = 115213096 and 115213105.

It is not an unprimeable number, because it can be changed into a prime (115213123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5717 + ... + 16220.

It is an arithmetic number, because the mean of its divisors is an integer number (9137177).

Almost surely, 2^115213124 is an apocalyptic number.

It is an amenable number.

115213124 is a deficient number, since it is larger than the sum of its proper divisors (104079124).

115213124 is a wasteful number, since it uses less digits than its factorization.

115213124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22055 (or 22053 counting only the distinct ones).

The product of its digits is 240, while the sum is 20.

The square root of 115213124 is about 10733.7376528402. The cubic root of 115213124 is about 486.5946364486.

Adding to 115213124 its reverse (421312511), we get a palindrome (536525635).

The spelling of 115213124 in words is "one hundred fifteen million, two hundred thirteen thousand, one hundred twenty-four".