2190311 has 2 divisors, whose sum is σ = 2190312. Its totient is φ = 2190310.

The previous prime is 2190299. The next prime is 2190317. The reversal of 2190311 is 1130912.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2190311 - 2¹⁰ = 2189287 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2190311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2190317) 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, 1095155 + 1095156.

It is an arithmetic number, because the mean of its divisors is an integer number (1095156).

2^2190311 is an apocalyptic number.

2190311 is a deficient number, since it is larger than the sum of its proper divisors (1).

2190311 is an equidigital number, since it uses as much as digits as its factorization.

2190311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 2190311 is about 1479.9699321270. The cubic root of 2190311 is about 129.8679329396.

The spelling of 2190311 in words is "two million, one hundred ninety thousand, three hundred eleven".