219029089 has 4 divisors (see below), whose sum is σ = 221490180. Its totient is φ = 216568000.

The previous prime is 219029077. The next prime is 219029099. The reversal of 219029089 is 980920912.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 117180625 + 101848464 = 10825^2 + 10092^2 .

It is a cyclic number.

It is not a de Polignac number, because 219029089 - 2⁹ = 219028577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (219029009) 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 in 3 ways as a sum of consecutive naturals, for example, 1230412 + ... + 1230589.

It is an arithmetic number, because the mean of its divisors is an integer number (55372545).

Almost surely, 2^219029089 is an apocalyptic number.

It is an amenable number.

219029089 is a deficient number, since it is larger than the sum of its proper divisors (2461091).

219029089 is an equidigital number, since it uses as much as digits as its factorization.

219029089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2461090.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 219029089 is about 14799.6313805446. The cubic root of 219029089 is about 602.7917025527.

The spelling of 219029089 in words is "two hundred nineteen million, twenty-nine thousand, eighty-nine".