115727881 has 8 divisors (see below), whose sum is σ = 121504320. Its totient is φ = 110013552.

The previous prime is 115727869. The next prime is 115727903. The reversal of 115727881 is 188727511.

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

It is a cyclic number.

It is not a de Polignac number, because 115727881 - 2⁷ = 115727753 is a prime.

It is a super-2 number, since 2×115727881² = 26785884881500322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115727281) 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, 11686 + ... + 19183.

It is an arithmetic number, because the mean of its divisors is an integer number (15188040).

Almost surely, 2^115727881 is an apocalyptic number.

It is an amenable number.

115727881 is a deficient number, since it is larger than the sum of its proper divisors (5776439).

115727881 is a wasteful number, since it uses less digits than its factorization.

115727881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31055.

The product of its digits is 31360, while the sum is 40.

The square root of 115727881 is about 10757.6893894553. The cubic root of 115727881 is about 487.3182400208.

The spelling of 115727881 in words is "one hundred fifteen million, seven hundred twenty-seven thousand, eight hundred eighty-one".