3543921281 has 2 divisors, whose sum is σ = 3543921282. Its totient is φ = 3543921280.

The previous prime is 3543921263. The next prime is 3543921323. The reversal of 3543921281 is 1821293453.

3543921281 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3523490881 + 20430400 = 59359^2 + 4520^2 .

It is a cyclic number.

It is not a de Polignac number, because 3543921281 - 2⁶ = 3543921217 is a prime.

It is a super-2 number, since 2×3543921281² = 25118756091849361922, which 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 (3543921181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1771960640 + 1771960641.

It is an arithmetic number, because the mean of its divisors is an integer number (1771960641).

Almost surely, 2^3543921281 is an apocalyptic number.

It is an amenable number.

3543921281 is a deficient number, since it is larger than the sum of its proper divisors (1).

3543921281 is an equidigital number, since it uses as much as digits as its factorization.

3543921281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 38.

The square root of 3543921281 is about 59530.8431067459. The cubic root of 3543921281 is about 1524.6190977027.

The spelling of 3543921281 in words is "three billion, five hundred forty-three million, nine hundred twenty-one thousand, two hundred eighty-one".