2195311 has 2 divisors, whose sum is σ = 2195312. Its totient is φ = 2195310.

The previous prime is 2195299. The next prime is 2195339. The reversal of 2195311 is 1135912.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2195311 - 2¹¹ = 2193263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2195341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1097655 + 1097656.

It is an arithmetic number, because the mean of its divisors is an integer number (1097656).

2^2195311 is an apocalyptic number.

2195311 is a deficient number, since it is larger than the sum of its proper divisors (1).

2195311 is an equidigital number, since it uses as much as digits as its factorization.

2195311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 270, while the sum is 22.

The square root of 2195311 is about 1481.6581927017. The cubic root of 2195311 is about 129.9666778500.

The spelling of 2195311 in words is "two million, one hundred ninety-five thousand, three hundred eleven".