115008861 has 16 divisors (see below), whose sum is σ = 167577408. Its totient is φ = 69580800.

The previous prime is 115008857. The next prime is 115008863. The reversal of 115008861 is 168800511.

It is a happy number.

It is not a de Polignac number, because 115008861 - 2² = 115008857 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115008863) 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 15 ways as a sum of consecutive naturals, for example, 18435 + ... + 23871.

It is an arithmetic number, because the mean of its divisors is an integer number (10473588).

Almost surely, 2^115008861 is an apocalyptic number.

115008861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

115008861 is a deficient number, since it is larger than the sum of its proper divisors (52568547).

115008861 is a wasteful number, since it uses less digits than its factorization.

115008861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6092.

The product of its (nonzero) digits is 1920, while the sum is 30.

The square root of 115008861 is about 10724.2184330608. The cubic root of 115008861 is about 486.3069028025.

The spelling of 115008861 in words is "one hundred fifteen million, eight thousand, eight hundred sixty-one".