15622241 has 2 divisors, whose sum is σ = 15622242. Its totient is φ = 15622240.

The previous prime is 15622231. The next prime is 15622261. The reversal of 15622241 is 14222651.

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., 12453841 + 3168400 = 3529^2 + 1780^2 .

It is a cyclic number.

It is not a de Polignac number, because 15622241 - 2¹⁰ = 15621217 is a prime.

It is not a weakly prime, because it can be changed into another prime (15622231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7811120 + 7811121.

It is an arithmetic number, because the mean of its divisors is an integer number (7811121).

Almost surely, 2^15622241 is an apocalyptic number.

It is an amenable number.

15622241 is a deficient number, since it is larger than the sum of its proper divisors (1).

15622241 is an equidigital number, since it uses as much as digits as its factorization.

15622241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960, while the sum is 23.

The square root of 15622241 is about 3952.4980708408. The cubic root of 15622241 is about 249.9852844672.

Adding to 15622241 its reverse (14222651), we get a palindrome (29844892).

The spelling of 15622241 in words is "fifteen million, six hundred twenty-two thousand, two hundred forty-one".