115871817 has 8 divisors (see below), whose sum is σ = 154685440. Its totient is φ = 77153040.

The previous prime is 115871783. The next prime is 115871843. The reversal of 115871817 is 718178511.

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

It is not a de Polignac number, because 115871817 - 2⁷ = 115871689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115871857) 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, 20809 + ... + 25782.

It is an arithmetic number, because the mean of its divisors is an integer number (19335680).

Almost surely, 2^115871817 is an apocalyptic number.

It is an amenable number.

115871817 is a deficient number, since it is larger than the sum of its proper divisors (38813623).

115871817 is an equidigital number, since it uses as much as digits as its factorization.

115871817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47423.

The product of its digits is 15680, while the sum is 39.

The square root of 115871817 is about 10764.3772230445. The cubic root of 115871817 is about 487.5201895649.

The spelling of 115871817 in words is "one hundred fifteen million, eight hundred seventy-one thousand, eight hundred seventeen".