2214661 has 2 divisors, whose sum is σ = 2214662. Its totient is φ = 2214660.

The previous prime is 2214637. The next prime is 2214679. The reversal of 2214661 is 1664122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1674436 + 540225 = 1294^2 + 735^2 .

It is a cyclic number.

It is not a de Polignac number, because 2214661 - 2¹³ = 2206469 is a prime.

2214661 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2214691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1107330 + 1107331.

It is an arithmetic number, because the mean of its divisors is an integer number (1107331).

2^2214661 is an apocalyptic number.

It is an amenable number.

2214661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2214661 is an equidigital number, since it uses as much as digits as its factorization.

2214661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 22.

The square root of 2214661 is about 1488.1737129784. The cubic root of 2214661 is about 130.3474139340.

Adding to 2214661 its reverse (1664122), we get a palindrome (3878783).

The spelling of 2214661 in words is "two million, two hundred fourteen thousand, six hundred sixty-one".