33144234281 has 2 divisors, whose sum is σ = 33144234282. Its totient is φ = 33144234280.

The previous prime is 33144234247. The next prime is 33144234317. The reversal of 33144234281 is 18243244133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17898158656 + 15246075625 = 133784^2 + 123475^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33144234281 is a prime.

It is a super-2 number, since 2×33144234281² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (33144234881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16572117140 + 16572117141.

It is an arithmetic number, because the mean of its divisors is an integer number (16572117141).

Almost surely, 2^33144234281 is an apocalyptic number.

It is an amenable number.

33144234281 is a deficient number, since it is larger than the sum of its proper divisors (1).

33144234281 is an equidigital number, since it uses as much as digits as its factorization.

33144234281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 35.

The spelling of 33144234281 in words is "thirty-three billion, one hundred forty-four million, two hundred thirty-four thousand, two hundred eighty-one".