2219557 has 2 divisors, whose sum is σ = 2219558. Its totient is φ = 2219556.

The previous prime is 2219551. The next prime is 2219563. The reversal of 2219557 is 7559122.

2219557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (2219551) and next prime (2219563).

It can be written as a sum of positive squares in only one way, i.e., 1852321 + 367236 = 1361^2 + 606^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2219557 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 2¹² + 2²¹ + 1 + 9 + 5² + 5⁴ + 7⁶ .

2219557 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2219551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1109778 + 1109779.

It is an arithmetic number, because the mean of its divisors is an integer number (1109779).

2^2219557 is an apocalyptic number.

It is an amenable number.

2219557 is a deficient number, since it is larger than the sum of its proper divisors (1).

2219557 is an equidigital number, since it uses as much as digits as its factorization.

2219557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6300, while the sum is 31.

The square root of 2219557 is about 1489.8177740919. The cubic root of 2219557 is about 130.4433972072.

The spelling of 2219557 in words is "two million, two hundred nineteen thousand, five hundred fifty-seven".