115457219 has 2 divisors, whose sum is σ = 115457220. Its totient is φ = 115457218.

The previous prime is 115457203. The next prime is 115457261. The reversal of 115457219 is 912754511.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115457219 - 2⁴ = 115457203 is a prime.

It is a super-2 number, since 2×115457219² = 26660738838427922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (115454219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57728609 + 57728610.

It is an arithmetic number, because the mean of its divisors is an integer number (57728610).

Almost surely, 2^115457219 is an apocalyptic number.

115457219 is a deficient number, since it is larger than the sum of its proper divisors (1).

115457219 is an equidigital number, since it uses as much as digits as its factorization.

115457219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12600, while the sum is 35.

The square root of 115457219 is about 10745.1020935122. The cubic root of 115457219 is about 486.9380334842.

The spelling of 115457219 in words is "one hundred fifteen million, four hundred fifty-seven thousand, two hundred nineteen".