22149144757 has 2 divisors, whose sum is σ = 22149144758. Its totient is φ = 22149144756.

The previous prime is 22149144751. The next prime is 22149144791. The reversal of 22149144757 is 75744194122.

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., 22145606596 + 3538161 = 148814^2 + 1881^2 .

It is a cyclic number.

It is not a de Polignac number, because 22149144757 - 2¹⁹ = 22148620469 is a prime.

It is a super-2 number, since 2×22149144757² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22149144751) 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, 11074572378 + 11074572379.

It is an arithmetic number, because the mean of its divisors is an integer number (11074572379).

Almost surely, 2^22149144757 is an apocalyptic number.

It is an amenable number.

22149144757 is a deficient number, since it is larger than the sum of its proper divisors (1).

22149144757 is an equidigital number, since it uses as much as digits as its factorization.

22149144757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 564480, while the sum is 46.

The spelling of 22149144757 in words is "twenty-two billion, one hundred forty-nine million, one hundred forty-four thousand, seven hundred fifty-seven".