22166741 has 2 divisors, whose sum is σ = 22166742. Its totient is φ = 22166740.

The previous prime is 22166719. The next prime is 22166789. The reversal of 22166741 is 14766122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20666116 + 1500625 = 4546^2 + 1225^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22166741 is a prime.

It is a super-2 number, since 2×22166741² = 982728813122162, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22166341) 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, 11083370 + 11083371.

It is an arithmetic number, because the mean of its divisors is an integer number (11083371).

Almost surely, 2^22166741 is an apocalyptic number.

It is an amenable number.

22166741 is a deficient number, since it is larger than the sum of its proper divisors (1).

22166741 is an equidigital number, since it uses as much as digits as its factorization.

22166741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 29.

The square root of 22166741 is about 4708.1568580497. The cubic root of 22166741 is about 280.9100534041.

The spelling of 22166741 in words is "twenty-two million, one hundred sixty-six thousand, seven hundred forty-one".