12115894 has 32 divisors (see below), whose sum is σ = 21897216. Its totient is φ = 4915680.

The previous prime is 12115889. The next prime is 12115903. The reversal of 12115894 is 49851121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61404 + ... + 61600.

It is an arithmetic number, because the mean of its divisors is an integer number (684288).

Almost surely, 2^12115894 is an apocalyptic number.

12115894 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12115894 is a deficient number, since it is larger than the sum of its proper divisors (9781322).

12115894 is a wasteful number, since it uses less digits than its factorization.

12115894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420.

The product of its digits is 2880, while the sum is 31.

The square root of 12115894 is about 3480.7892783103. The cubic root of 12115894 is about 229.6775190782.

The spelling of 12115894 in words is "twelve million, one hundred fifteen thousand, eight hundred ninety-four".