115272281 has 4 divisors (see below), whose sum is σ = 115315200. Its totient is φ = 115229364.

The previous prime is 115272239. The next prime is 115272299. The reversal of 115272281 is 182272511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 115272281 - 2¹⁰ = 115271257 is a prime.

It is a super-2 number, since 2×115272281² = 26575397533885922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115274281) 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, 17141 + ... + 22898.

It is an arithmetic number, because the mean of its divisors is an integer number (28828800).

Almost surely, 2^115272281 is an apocalyptic number.

It is an amenable number.

115272281 is a deficient number, since it is larger than the sum of its proper divisors (42919).

115272281 is an equidigital number, since it uses as much as digits as its factorization.

115272281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42918.

The product of its digits is 2240, while the sum is 29.

The square root of 115272281 is about 10736.4929562684. The cubic root of 115272281 is about 486.6779040273.

The spelling of 115272281 in words is "one hundred fifteen million, two hundred seventy-two thousand, two hundred eighty-one".