2219354729 has 2 divisors, whose sum is σ = 2219354730. Its totient is φ = 2219354728.

The previous prime is 2219354719. The next prime is 2219354773. The reversal of 2219354729 is 9274539122.

It is an a-pointer prime, because the next prime (2219354773) can be obtained adding 2219354729 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1962490000 + 256864729 = 44300^2 + 16027^2 .

It is a cyclic number.

It is not a de Polignac number, because 2219354729 - 2⁴ = 2219354713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2219354729.

It is not a weakly prime, because it can be changed into another prime (2219354719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1109677364 + 1109677365.

It is an arithmetic number, because the mean of its divisors is an integer number (1109677365).

Almost surely, 2^2219354729 is an apocalyptic number.

It is an amenable number.

2219354729 is a deficient number, since it is larger than the sum of its proper divisors (1).

2219354729 is an equidigital number, since it uses as much as digits as its factorization.

2219354729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 44.

The square root of 2219354729 is about 47110.0279027725. The cubic root of 2219354729 is about 1304.3943459695.

The spelling of 2219354729 in words is "two billion, two hundred nineteen million, three hundred fifty-four thousand, seven hundred twenty-nine".