115582281 has 8 divisors (see below), whose sum is σ = 154191840. Its totient is φ = 77013792.

The previous prime is 115582277. The next prime is 115582289. The reversal of 115582281 is 182285511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 115582281 - 2² = 115582277 is a prime.

It is a super-2 number, since 2×115582281² = 26718527362325922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (115582289) 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, 2955 + ... + 15488.

It is an arithmetic number, because the mean of its divisors is an integer number (19273980).

Almost surely, 2^115582281 is an apocalyptic number.

It is an amenable number.

115582281 is a deficient number, since it is larger than the sum of its proper divisors (38609559).

115582281 is a wasteful number, since it uses less digits than its factorization.

115582281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20535.

The product of its digits is 6400, while the sum is 33.

The square root of 115582281 is about 10750.9200071436. The cubic root of 115582281 is about 487.1137853637.

It can be divided in two parts, 1155 and 82281, that added together give a triangular number (83436 = T₄₀₈).

The spelling of 115582281 in words is "one hundred fifteen million, five hundred eighty-two thousand, two hundred eighty-one".