12442273 has 2 divisors, whose sum is σ = 12442274. Its totient is φ = 12442272.

The previous prime is 12442271. The next prime is 12442277. The reversal of 12442273 is 37224421.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8573184 + 3869089 = 2928^2 + 1967^2 .

It is a cyclic number.

It is not a de Polignac number, because 12442273 - 2¹ = 12442271 is a prime.

Together with 12442271, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12442271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6221136 + 6221137.

It is an arithmetic number, because the mean of its divisors is an integer number (6221137).

Almost surely, 2^12442273 is an apocalyptic number.

It is an amenable number.

12442273 is a deficient number, since it is larger than the sum of its proper divisors (1).

12442273 is an equidigital number, since it uses as much as digits as its factorization.

12442273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 25.

The square root of 12442273 is about 3527.3606280050. The cubic root of 12442273 is about 231.7216303059.

Adding to 12442273 its reverse (37224421), we get a palindrome (49666694).

The spelling of 12442273 in words is "twelve million, four hundred forty-two thousand, two hundred seventy-three".