22141813 has 2 divisors, whose sum is σ = 22141814. Its totient is φ = 22141812.

The previous prime is 22141811. The next prime is 22141829. The reversal of 22141813 is 31814122.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20088324 + 2053489 = 4482^2 + 1433^2 .

It is a cyclic number.

It is not a de Polignac number, because 22141813 - 2¹ = 22141811 is a prime.

Together with 22141811, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22141811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11070906 + 11070907.

It is an arithmetic number, because the mean of its divisors is an integer number (11070907).

Almost surely, 2^22141813 is an apocalyptic number.

It is an amenable number.

22141813 is a deficient number, since it is larger than the sum of its proper divisors (1).

22141813 is an equidigital number, since it uses as much as digits as its factorization.

22141813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 384, while the sum is 22.

The square root of 22141813 is about 4705.5087928937. The cubic root of 22141813 is about 280.8047131199.

Adding to 22141813 its reverse (31814122), we get a palindrome (53955935).

The spelling of 22141813 in words is "twenty-two million, one hundred forty-one thousand, eight hundred thirteen".