12244691 has 4 divisors (see below), whose sum is σ = 12543384. Its totient is φ = 11946000.

The previous prime is 12244681. The next prime is 12244703. The reversal of 12244691 is 19644221.

12244691 = 89² + 90² + ... + 334².

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19644221 = 1009 ⋅19469.

It is a cyclic number.

It is not a de Polignac number, because 12244691 - 2¹⁸ = 11982547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12244681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149285 + ... + 149366.

It is an arithmetic number, because the mean of its divisors is an integer number (3135846).

Almost surely, 2^12244691 is an apocalyptic number.

12244691 is a deficient number, since it is larger than the sum of its proper divisors (298693).

12244691 is an equidigital number, since it uses as much as digits as its factorization.

12244691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298692.

The product of its digits is 3456, while the sum is 29.

The square root of 12244691 is about 3499.2414892373. The cubic root of 12244691 is about 230.4885080137.

The spelling of 12244691 in words is "twelve million, two hundred forty-four thousand, six hundred ninety-one".