22163737 has 2 divisors, whose sum is σ = 22163738. Its totient is φ = 22163736.

The previous prime is 22163731. The next prime is 22163741. The reversal of 22163737 is 73736122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12559936 + 9603801 = 3544^2 + 3099^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22163737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22163699 and 22163708.

It is not a weakly prime, because it can be changed into another prime (22163731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11081868 + 11081869.

It is an arithmetic number, because the mean of its divisors is an integer number (11081869).

Almost surely, 2^22163737 is an apocalyptic number.

It is an amenable number.

22163737 is a deficient number, since it is larger than the sum of its proper divisors (1).

22163737 is an equidigital number, since it uses as much as digits as its factorization.

22163737 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10584, while the sum is 31.

The square root of 22163737 is about 4707.8378264337. The cubic root of 22163737 is about 280.8973633426.

Adding to 22163737 its reverse (73736122), we get a palindrome (95899859).

The spelling of 22163737 in words is "twenty-two million, one hundred sixty-three thousand, seven hundred thirty-seven".