12244581 has 16 divisors (see below), whose sum is σ = 18528000. Its totient is φ = 7988544.

The previous prime is 12244577. The next prime is 12244613. The reversal of 12244581 is 18544221.

It is not a de Polignac number, because 12244581 - 2² = 12244577 is a prime.

It is a super-2 number, since 2×12244581² = 299859527731122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12244501) 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, 3556 + ... + 6093.

It is an arithmetic number, because the mean of its divisors is an integer number (1158000).

Almost surely, 2^12244581 is an apocalyptic number.

It is an amenable number.

12244581 is a deficient number, since it is larger than the sum of its proper divisors (6283419).

12244581 is an equidigital number, since it uses as much as digits as its factorization.

12244581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9705 (or 9699 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 12244581 is about 3499.2257715100. The cubic root of 12244581 is about 230.4878178149.

The spelling of 12244581 in words is "twelve million, two hundred forty-four thousand, five hundred eighty-one".