115866005 has 8 divisors (see below), whose sum is σ = 139622400. Its totient is φ = 92304016.

The previous prime is 115865993. The next prime is 115866031. The reversal of 115866005 is 500668511.

It is a happy number.

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 115866005 - 2⁴ = 115865989 is a prime.

It is a super-2 number, since 2×115866005² = 26849862229320050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47285 + ... + 49674.

It is an arithmetic number, because the mean of its divisors is an integer number (17452800).

Almost surely, 2^115866005 is an apocalyptic number.

It is an amenable number.

115866005 is a deficient number, since it is larger than the sum of its proper divisors (23756395).

115866005 is an equidigital number, since it uses as much as digits as its factorization.

115866005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97203.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 115866005 is about 10764.1072551327. The cubic root of 115866005 is about 487.5120382738.

The spelling of 115866005 in words is "one hundred fifteen million, eight hundred sixty-six thousand, five".