2193239 has 2 divisors, whose sum is σ = 2193240. Its totient is φ = 2193238.

The previous prime is 2193223. The next prime is 2193251. The reversal of 2193239 is 9323912.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2193239 - 2⁴ = 2193223 is a prime.

It is a super-2 number, since 2×2193239² = 9620594622242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2193209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1096619 + 1096620.

It is an arithmetic number, because the mean of its divisors is an integer number (1096620).

2^2193239 is an apocalyptic number.

2193239 is a deficient number, since it is larger than the sum of its proper divisors (1).

2193239 is an equidigital number, since it uses as much as digits as its factorization.

2193239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2916, while the sum is 29.

The square root of 2193239 is about 1480.9588110410. The cubic root of 2193239 is about 129.9257761702.

The spelling of 2193239 in words is "two million, one hundred ninety-three thousand, two hundred thirty-nine".