219135982 has 8 divisors (see below), whose sum is σ = 353988936. Its totient is φ = 101139672.

The previous prime is 219135937. The next prime is 219135991. The reversal of 219135982 is 289531912.

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

It is a congruent number.

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, 4214128 + ... + 4214179.

It is an arithmetic number, because the mean of its divisors is an integer number (44248617).

Almost surely, 2^219135982 is an apocalyptic number.

219135982 is a deficient number, since it is larger than the sum of its proper divisors (134852954).

219135982 is a wasteful number, since it uses less digits than its factorization.

219135982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8428322.

The product of its digits is 38880, while the sum is 40.

The square root of 219135982 is about 14803.2422799872. The cubic root of 219135982 is about 602.8897469641.

The spelling of 219135982 in words is "two hundred nineteen million, one hundred thirty-five thousand, nine hundred eighty-two".