115228881 has 12 divisors (see below), whose sum is σ = 168059008. Its totient is φ = 76072824.

The previous prime is 115228871. The next prime is 115228889. The reversal of 115228881 is 188822511.

It is not a de Polignac number, because 115228881 - 2⁷ = 115228753 is a prime.

It is a super-2 number, since 2×115228881² = 26555390033024322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115228889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61225 + ... + 63078.

Almost surely, 2^115228881 is an apocalyptic number.

It is an amenable number.

115228881 is a deficient number, since it is larger than the sum of its proper divisors (52830127).

115228881 is a wasteful number, since it uses less digits than its factorization.

115228881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124412 (or 124409 counting only the distinct ones).

The product of its digits is 10240, while the sum is 36.

The square root of 115228881 is about 10734.4716218359. The cubic root of 115228881 is about 486.6168183029.

The spelling of 115228881 in words is "one hundred fifteen million, two hundred twenty-eight thousand, eight hundred eighty-one".