12291841 has 16 divisors (see below), whose sum is σ = 13708800. Its totient is φ = 10972800.

The previous prime is 12291827. The next prime is 12291857. The reversal of 12291841 is 14819221.

12291841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12291841 - 2⁵ = 12291809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12291871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23895 + ... + 24403.

It is an arithmetic number, because the mean of its divisors is an integer number (856800).

Almost surely, 2^12291841 is an apocalyptic number.

It is an amenable number.

12291841 is a deficient number, since it is larger than the sum of its proper divisors (1416959).

12291841 is a wasteful number, since it uses less digits than its factorization.

12291841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600.

The product of its digits is 1152, while the sum is 28.

The square root of 12291841 is about 3505.9721904202. The cubic root of 12291841 is about 230.7839724970.

The spelling of 12291841 in words is "twelve million, two hundred ninety-one thousand, eight hundred forty-one".