2220539 has 2 divisors, whose sum is σ = 2220540. Its totient is φ = 2220538.

The previous prime is 2220529. The next prime is 2220551. The reversal of 2220539 is 9350222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2220539 - 2¹⁶ = 2155003 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2220529) 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, 1110269 + 1110270.

It is an arithmetic number, because the mean of its divisors is an integer number (1110270).

2^2220539 is an apocalyptic number.

2220539 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220539 is an equidigital number, since it uses as much as digits as its factorization.

2220539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 2220539 is about 1490.1473081545. The cubic root of 2220539 is about 130.4626317556.

The spelling of 2220539 in words is "two million, two hundred twenty thousand, five hundred thirty-nine".