12866115 has 8 divisors (see below), whose sum is σ = 20585808. Its totient is φ = 6861920.

The previous prime is 12866101. The next prime is 12866129. The reversal of 12866115 is 51166821.

It is an interprime number because it is at equal distance from previous prime (12866101) and next prime (12866129).

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

It is not a de Polignac number, because 12866115 - 2⁵ = 12866083 is a prime.

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, 428856 + ... + 428885.

It is an arithmetic number, because the mean of its divisors is an integer number (2573226).

Almost surely, 2^12866115 is an apocalyptic number.

12866115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12866115 is a deficient number, since it is larger than the sum of its proper divisors (7719693).

12866115 is an equidigital number, since it uses as much as digits as its factorization.

12866115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857749.

The product of its digits is 2880, while the sum is 30.

The square root of 12866115 is about 3586.9367153603. The cubic root of 12866115 is about 234.3234805871.

The spelling of 12866115 in words is "twelve million, eight hundred sixty-six thousand, one hundred fifteen".