219134856 has 16 divisors (see below), whose sum is σ = 547837200. Its totient is φ = 73044944.

The previous prime is 219134813. The next prime is 219134863. The reversal of 219134856 is 658431912.

It is a super-2 number, since 2×219134856² = 96040170228281472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4565286 + ... + 4565333.

It is an arithmetic number, because the mean of its divisors is an integer number (34239825).

Almost surely, 2^219134856 is an apocalyptic number.

It is an amenable number.

219134856 is an abundant number, since it is smaller than the sum of its proper divisors (328702344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

219134856 is a wasteful number, since it uses less digits than its factorization.

219134856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9130628 (or 9130624 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 219134856 is about 14803.2042477296. The cubic root of 219134856 is about 602.8887143404. Note that the first 3 decimals are identical.

The spelling of 219134856 in words is "two hundred nineteen million, one hundred thirty-four thousand, eight hundred fifty-six".