2190017 has 2 divisors, whose sum is σ = 2190018. Its totient is φ = 2190016.

The previous prime is 2189989. The next prime is 2190031. The reversal of 2190017 is 7100912.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1825201 + 364816 = 1351^2 + 604^2 .

It is a cyclic number.

It is not a de Polignac number, because 2190017 - 2¹⁰ = 2188993 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2190047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1095008 + 1095009.

It is an arithmetic number, because the mean of its divisors is an integer number (1095009).

2^2190017 is an apocalyptic number.

It is an amenable number.

2190017 is a deficient number, since it is larger than the sum of its proper divisors (1).

2190017 is an equidigital number, since it uses as much as digits as its factorization.

2190017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 2190017 is about 1479.8706024514. The cubic root of 2190017 is about 129.8621220630.

Adding to 2190017 its reverse (7100912), we get a palindrome (9290929).

The spelling of 2190017 in words is "two million, one hundred ninety thousand, seventeen".