22136651 has 2 divisors, whose sum is σ = 22136652. Its totient is φ = 22136650.

The previous prime is 22136641. The next prime is 22136663. The reversal of 22136651 is 15663122.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22136651 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22136651.

It is not a weakly prime, because it can be changed into another prime (22136641) 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, 11068325 + 11068326.

It is an arithmetic number, because the mean of its divisors is an integer number (11068326).

Almost surely, 2^22136651 is an apocalyptic number.

22136651 is a deficient number, since it is larger than the sum of its proper divisors (1).

22136651 is an equidigital number, since it uses as much as digits as its factorization.

22136651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 26.

The square root of 22136651 is about 4704.9602548799. The cubic root of 22136651 is about 280.7828897551.

Adding to 22136651 its reverse (15663122), we get a palindrome (37799773).

The spelling of 22136651 in words is "twenty-two million, one hundred thirty-six thousand, six hundred fifty-one".