22163077 has 4 divisors (see below), whose sum is σ = 22200556. Its totient is φ = 22125600.

The previous prime is 22163051. The next prime is 22163081. The reversal of 22163077 is 77036122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19061956 + 3101121 = 4366^2 + 1761^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22163077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22163027) 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 in 3 ways as a sum of consecutive naturals, for example, 17838 + ... + 19039.

It is an arithmetic number, because the mean of its divisors is an integer number (5550139).

Almost surely, 2^22163077 is an apocalyptic number.

It is an amenable number.

22163077 is a deficient number, since it is larger than the sum of its proper divisors (37479).

22163077 is an equidigital number, since it uses as much as digits as its factorization.

22163077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37478.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 22163077 is about 4707.7677300394. The cubic root of 22163077 is about 280.8945750929.

Adding to 22163077 its reverse (77036122), we get a palindrome (99199199).

The spelling of 22163077 in words is "twenty-two million, one hundred sixty-three thousand, seventy-seven".