3211161409 has 2 divisors, whose sum is σ = 3211161410. Its totient is φ = 3211161408.

The previous prime is 3211161397. The next prime is 3211161419. The reversal of 3211161409 is 9041611123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3206730384 + 4431025 = 56628^2 + 2105^2 .

It is an emirp because it is prime and its reverse (9041611123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3211161409 - 2⁷ = 3211161281 is a prime.

It is not a weakly prime, because it can be changed into another prime (3211161419) 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, 1605580704 + 1605580705.

It is an arithmetic number, because the mean of its divisors is an integer number (1605580705).

Almost surely, 2^3211161409 is an apocalyptic number.

It is an amenable number.

3211161409 is a deficient number, since it is larger than the sum of its proper divisors (1).

3211161409 is an equidigital number, since it uses as much as digits as its factorization.

3211161409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 3211161409 is about 56667.1104698307. The cubic root of 3211161409 is about 1475.3239022851.

The spelling of 3211161409 in words is "three billion, two hundred eleven million, one hundred sixty-one thousand, four hundred nine".