22145653 has 2 divisors, whose sum is σ = 22145654. Its totient is φ = 22145652.

The previous prime is 22145609. The next prime is 22145657. The reversal of 22145653 is 35654122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15186609 + 6959044 = 3897^2 + 2638^2 .

It is a cyclic number.

It is not a de Polignac number, because 22145653 - 2⁹ = 22145141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22145657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11072826 + 11072827.

It is an arithmetic number, because the mean of its divisors is an integer number (11072827).

Almost surely, 2^22145653 is an apocalyptic number.

It is an amenable number.

22145653 is a deficient number, since it is larger than the sum of its proper divisors (1).

22145653 is an equidigital number, since it uses as much as digits as its factorization.

22145653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 28.

The square root of 22145653 is about 4705.9168075945. The cubic root of 22145653 is about 280.8209452711.

Adding to 22145653 its reverse (35654122), we get a palindrome (57799775).

The spelling of 22145653 in words is "twenty-two million, one hundred forty-five thousand, six hundred fifty-three".