12261894 has 16 divisors (see below), whose sum is σ = 24667632. Its totient is φ = 4063328.

The previous prime is 12261889. The next prime is 12261901. The reversal of 12261894 is 49816221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4869 + ... + 6944.

It is an arithmetic number, because the mean of its divisors is an integer number (1541727).

Almost surely, 2^12261894 is an apocalyptic number.

12261894 is an abundant number, since it is smaller than the sum of its proper divisors (12405738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12261894 is a wasteful number, since it uses less digits than its factorization.

12261894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11991.

The product of its digits is 6912, while the sum is 33.

The square root of 12261894 is about 3501.6987306163. The cubic root of 12261894 is about 230.5963979923.

The spelling of 12261894 in words is "twelve million, two hundred sixty-one thousand, eight hundred ninety-four".