3213149 has 2 divisors, whose sum is σ = 3213150. Its totient is φ = 3213148.

The previous prime is 3213139. The next prime is 3213151. The reversal of 3213149 is 9413123.

3213149 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., 2544025 + 669124 = 1595^2 + 818^2 .

It is an emirp because it is prime and its reverse (9413123) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3213149 is a prime.

Together with 3213151, 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 (3213139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1606574 + 1606575.

It is an arithmetic number, because the mean of its divisors is an integer number (1606575).

Almost surely, 2^3213149 is an apocalyptic number.

It is an amenable number.

3213149 is a deficient number, since it is larger than the sum of its proper divisors (1).

3213149 is an equidigital number, since it uses as much as digits as its factorization.

3213149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 23.

The square root of 3213149 is about 1792.5258715009. The cubic root of 3213149 is about 147.5628229945.

The spelling of 3213149 in words is "three million, two hundred thirteen thousand, one hundred forty-nine".