12215494 has 16 divisors (see below), whose sum is σ = 18748800. Its totient is φ = 5967360.

The previous prime is 12215477. The next prime is 12215527. The reversal of 12215494 is 49451221.

12215494 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 26982 + ... + 27430.

It is an arithmetic number, because the mean of its divisors is an integer number (1171800).

Almost surely, 2^12215494 is an apocalyptic number.

12215494 is a deficient number, since it is larger than the sum of its proper divisors (6533306).

12215494 is a wasteful number, since it uses less digits than its factorization.

12215494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735.

The product of its digits is 2880, while the sum is 28.

The square root of 12215494 is about 3495.0670952072. The cubic root of 12215494 is about 230.3051651845.

The spelling of 12215494 in words is "twelve million, two hundred fifteen thousand, four hundred ninety-four".