219603049 has 2 divisors, whose sum is σ = 219603050. Its totient is φ = 219603048.

The previous prime is 219603037. The next prime is 219603073. The reversal of 219603049 is 940306912.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212139225 + 7463824 = 14565^2 + 2732^2 .

It is a cyclic number.

It is not a de Polignac number, because 219603049 - 2⁷ = 219602921 is a prime.

It is not a weakly prime, because it can be changed into another prime (219603649) 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, 109801524 + 109801525.

It is an arithmetic number, because the mean of its divisors is an integer number (109801525).

Almost surely, 2^219603049 is an apocalyptic number.

It is an amenable number.

219603049 is a deficient number, since it is larger than the sum of its proper divisors (1).

219603049 is an equidigital number, since it uses as much as digits as its factorization.

219603049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 219603049 is about 14819.0097172517. The cubic root of 219603049 is about 603.3177765966.

The spelling of 219603049 in words is "two hundred nineteen million, six hundred three thousand, forty-nine".