115152281 has 2 divisors, whose sum is σ = 115152282. Its totient is φ = 115152280.

The previous prime is 115152277. The next prime is 115152299. The reversal of 115152281 is 182251511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114811225 + 341056 = 10715^2 + 584^2 .

It is a cyclic number.

It is not a de Polignac number, because 115152281 - 2² = 115152277 is a prime.

It is a super-2 number, since 2×115152281² = 26520095639005922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115152281.

It is not a weakly prime, because it can be changed into another prime (115152211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57576140 + 57576141.

It is an arithmetic number, because the mean of its divisors is an integer number (57576141).

Almost surely, 2^115152281 is an apocalyptic number.

It is an amenable number.

115152281 is a deficient number, since it is larger than the sum of its proper divisors (1).

115152281 is an equidigital number, since it uses as much as digits as its factorization.

115152281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 800, while the sum is 26.

The square root of 115152281 is about 10730.9030840838. The cubic root of 115152281 is about 486.5089659697.

The spelling of 115152281 in words is "one hundred fifteen million, one hundred fifty-two thousand, two hundred eighty-one".