2218303541 has 2 divisors, whose sum is σ = 2218303542. Its totient is φ = 2218303540.

The previous prime is 2218303537. The next prime is 2218303547. The reversal of 2218303541 is 1453038122.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1609694641 + 608608900 = 40121^2 + 24670^2 .

It is a cyclic number.

It is not a de Polignac number, because 2218303541 - 2² = 2218303537 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2218303547) 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, 1109151770 + 1109151771.

It is an arithmetic number, because the mean of its divisors is an integer number (1109151771).

Almost surely, 2^2218303541 is an apocalyptic number.

It is an amenable number.

2218303541 is a deficient number, since it is larger than the sum of its proper divisors (1).

2218303541 is an equidigital number, since it uses as much as digits as its factorization.

2218303541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 2218303541 is about 47098.8698484369. The cubic root of 2218303541 is about 1304.1883731546.

The spelling of 2218303541 in words is "two billion, two hundred eighteen million, three hundred three thousand, five hundred forty-one".