219145022 has 8 divisors (see below), whose sum is σ = 330276072. Its totient is φ = 109053000.

The previous prime is 219145009. The next prime is 219145027. The reversal of 219145022 is 220541912.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 219144982 and 219145000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219145027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259229 + ... + 260072.

It is an arithmetic number, because the mean of its divisors is an integer number (41284509).

Almost surely, 2^219145022 is an apocalyptic number.

219145022 is a deficient number, since it is larger than the sum of its proper divisors (111131050).

219145022 is a wasteful number, since it uses less digits than its factorization.

219145022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519514.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 219145022 is about 14803.5476153522. The cubic root of 219145022 is about 602.8980371717.

Adding to 219145022 its reverse (220541912), we get a palindrome (439686934).

The spelling of 219145022 in words is "two hundred nineteen million, one hundred forty-five thousand, twenty-two".