12255646 has 16 divisors (see below), whose sum is σ = 20840400. Its totient is φ = 5358528.

The previous prime is 12255637. The next prime is 12255647. The reversal of 12255646 is 64655221.

12255646 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 not an unprimeable number, because it can be changed into a prime (12255647) 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, 11911 + ... + 12898.

It is an arithmetic number, because the mean of its divisors is an integer number (1302525).

Almost surely, 2^12255646 is an apocalyptic number.

12255646 is a deficient number, since it is larger than the sum of its proper divisors (8584754).

12255646 is a wasteful number, since it uses less digits than its factorization.

12255646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24843.

The product of its digits is 14400, while the sum is 31.

The square root of 12255646 is about 3500.8064785132. The cubic root of 12255646 is about 230.5572248413.

The spelling of 12255646 in words is "twelve million, two hundred fifty-five thousand, six hundred forty-six".