13422281 has 2 divisors, whose sum is σ = 13422282. Its totient is φ = 13422280.

The previous prime is 13422263. The next prime is 13422289. The reversal of 13422281 is 18222431.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12538681 + 883600 = 3541^2 + 940^2 .

It is an emirp because it is prime and its reverse (18222431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13422281 - 2¹⁴ = 13405897 is a prime.

It is a super-2 number, since 2×13422281² = 360315254485922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13422289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6711140 + 6711141.

It is an arithmetic number, because the mean of its divisors is an integer number (6711141).

Almost surely, 2^13422281 is an apocalyptic number.

It is an amenable number.

13422281 is a deficient number, since it is larger than the sum of its proper divisors (1).

13422281 is an equidigital number, since it uses as much as digits as its factorization.

13422281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 768, while the sum is 23.

The square root of 13422281 is about 3663.6431321841. The cubic root of 13422281 is about 237.6523476829.

The spelling of 13422281 in words is "thirteen million, four hundred twenty-two thousand, two hundred eighty-one".