22044137 has 2 divisors, whose sum is σ = 22044138. Its totient is φ = 22044136.

The previous prime is 22044133. The next prime is 22044157. The reversal of 22044137 is 73144022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16192576 + 5851561 = 4024^2 + 2419^2 .

It is a cyclic number.

It is not a de Polignac number, because 22044137 - 2² = 22044133 is a prime.

It is not a weakly prime, because it can be changed into another prime (22044133) 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, 11022068 + 11022069.

It is an arithmetic number, because the mean of its divisors is an integer number (11022069).

Almost surely, 2^22044137 is an apocalyptic number.

It is an amenable number.

22044137 is a deficient number, since it is larger than the sum of its proper divisors (1).

22044137 is an equidigital number, since it uses as much as digits as its factorization.

22044137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 22044137 is about 4695.1184223617. The cubic root of 22044137 is about 280.3911921507.

Adding to 22044137 its reverse (73144022), we get a palindrome (95188159).

The spelling of 22044137 in words is "twenty-two million, forty-four thousand, one hundred thirty-seven".