219881085 has 8 divisors (see below), whose sum is σ = 351809760. Its totient is φ = 117269904.

The previous prime is 219881071. The next prime is 219881117. The reversal of 219881085 is 580188912.

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

It is not a de Polignac number, because 219881085 - 2⁶ = 219881021 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7329355 + ... + 7329384.

It is an arithmetic number, because the mean of its divisors is an integer number (43976220).

Almost surely, 2^219881085 is an apocalyptic number.

It is an amenable number.

219881085 is a deficient number, since it is larger than the sum of its proper divisors (131928675).

219881085 is a wasteful number, since it uses less digits than its factorization.

219881085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14658747.

The product of its (nonzero) digits is 46080, while the sum is 42.

The square root of 219881085 is about 14828.3878085246. The cubic root of 219881085 is about 603.5722862966.

The spelling of 219881085 in words is "two hundred nineteen million, eight hundred eighty-one thousand, eighty-five".