2219251 has 2 divisors, whose sum is σ = 2219252. Its totient is φ = 2219250.

The previous prime is 2219221. The next prime is 2219279. The reversal of 2219251 is 1529122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2219251 - 2⁷ = 2219123 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2219221) 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, 1109625 + 1109626.

It is an arithmetic number, because the mean of its divisors is an integer number (1109626).

2^2219251 is an apocalyptic number.

2219251 is a deficient number, since it is larger than the sum of its proper divisors (1).

2219251 is an equidigital number, since it uses as much as digits as its factorization.

2219251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360, while the sum is 22.

The square root of 2219251 is about 1489.7150734285. The cubic root of 2219251 is about 130.4374023902.

The spelling of 2219251 in words is "two million, two hundred nineteen thousand, two hundred fifty-one".