3213139 has 2 divisors, whose sum is σ = 3213140. Its totient is φ = 3213138.

The previous prime is 3213137. The next prime is 3213149. The reversal of 3213139 is 9313123.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3213139 - 2¹ = 3213137 is a prime.

Together with 3213137, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3213131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1606569 + 1606570.

It is an arithmetic number, because the mean of its divisors is an integer number (1606570).

Almost surely, 2^3213139 is an apocalyptic number.

3213139 is a deficient number, since it is larger than the sum of its proper divisors (1).

3213139 is an equidigital number, since it uses as much as digits as its factorization.

3213139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 486, while the sum is 22.

The square root of 3213139 is about 1792.5230821387. The cubic root of 3213139 is about 147.5626699121.

The spelling of 3213139 in words is "three million, two hundred thirteen thousand, one hundred thirty-nine".