219139353 has 6 divisors (see below), whose sum is σ = 316534634. Its totient is φ = 146092896.

The previous prime is 219139321. The next prime is 219139381. The reversal of 219139353 is 353931912.

219139353 is a `hidden beast` number, since 219 + 1 + 393 + 53 = 666.

It can be written as a sum of positive squares in only one way, i.e., 218211984 + 927369 = 14772^2 + 963^2 .

It is not a de Polignac number, because 219139353 - 2⁵ = 219139321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (219139313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12174400 + ... + 12174417.

Almost surely, 2^219139353 is an apocalyptic number.

It is an amenable number.

219139353 is a deficient number, since it is larger than the sum of its proper divisors (97395281).

219139353 is a wasteful number, since it uses less digits than its factorization.

219139353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24348823 (or 24348820 counting only the distinct ones).

The product of its digits is 21870, while the sum is 36.

The square root of 219139353 is about 14803.3561397407. The cubic root of 219139353 is about 602.8928383945.

The spelling of 219139353 in words is "two hundred nineteen million, one hundred thirty-nine thousand, three hundred fifty-three".