22066137 has 6 divisors (see below), whose sum is σ = 31873322. Its totient is φ = 14710752.

The previous prime is 22066133. The next prime is 22066139. The reversal of 22066137 is 73166022.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 20575296 + 1490841 = 4536^2 + 1221^2 .

It is not a de Polignac number, because 22066137 - 2² = 22066133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22066137.

It is not an unprimeable number, because it can be changed into a prime (22066133) 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 in 5 ways as a sum of consecutive naturals, for example, 1225888 + ... + 1225905.

Almost surely, 2^22066137 is an apocalyptic number.

It is an amenable number.

22066137 is a deficient number, since it is larger than the sum of its proper divisors (9807185).

22066137 is a wasteful number, since it uses less digits than its factorization.

22066137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2451799 (or 2451796 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 22066137 is about 4697.4606970149. The cubic root of 22066137 is about 280.4844377346.

The spelling of 22066137 in words is "twenty-two million, sixty-six thousand, one hundred thirty-seven".