3369643181 has 2 divisors, whose sum is σ = 3369643182. Its totient is φ = 3369643180.

The previous prime is 3369643159. The next prime is 3369643183. The reversal of 3369643181 is 1813469633.

It is a happy number.

3369643181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3241024900 + 128618281 = 56930^2 + 11341^2 .

It is a cyclic number.

It is not a de Polignac number, because 3369643181 - 2²⁶ = 3302534317 is a prime.

It is a super-2 number, since 2×3369643181² = 22708990334519597522, which contains 22 as substring.

Together with 3369643183, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3369643183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1684821590 + 1684821591.

It is an arithmetic number, because the mean of its divisors is an integer number (1684821591).

Almost surely, 2^3369643181 is an apocalyptic number.

It is an amenable number.

3369643181 is a deficient number, since it is larger than the sum of its proper divisors (1).

3369643181 is an equidigital number, since it uses as much as digits as its factorization.

3369643181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 44.

The square root of 3369643181 is about 58048.6277271048. The cubic root of 3369643181 is about 1499.2059769443.

The spelling of 3369643181 in words is "three billion, three hundred sixty-nine million, six hundred forty-three thousand, one hundred eighty-one".