115224013 has 2 divisors, whose sum is σ = 115224014. Its totient is φ = 115224012.

The previous prime is 115223963. The next prime is 115224017. The reversal of 115224013 is 310422511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101666889 + 13557124 = 10083^2 + 3682^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115224013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115224017) 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 as a sum of consecutive naturals, namely, 57612006 + 57612007.

It is an arithmetic number, because the mean of its divisors is an integer number (57612007).

Almost surely, 2^115224013 is an apocalyptic number.

It is an amenable number.

115224013 is a deficient number, since it is larger than the sum of its proper divisors (1).

115224013 is an equidigital number, since it uses as much as digits as its factorization.

115224013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 115224013 is about 10734.2448733015. The cubic root of 115224013 is about 486.6099656111.

Adding to 115224013 its reverse (310422511), we get a palindrome (425646524).

The spelling of 115224013 in words is "one hundred fifteen million, two hundred twenty-four thousand, thirteen".