219450133 has 8 divisors (see below), whose sum is σ = 264000320. Its totient is φ = 178200000.

The previous prime is 219450103. The next prime is 219450139. The reversal of 219450133 is 331054912.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-219450133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219450139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 824868 + ... + 825133.

It is an arithmetic number, because the mean of its divisors is an integer number (33000040).

Almost surely, 2^219450133 is an apocalyptic number.

It is an amenable number.

219450133 is a deficient number, since it is larger than the sum of its proper divisors (44550187).

219450133 is a wasteful number, since it uses less digits than its factorization.

219450133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650027.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 219450133 is about 14813.8493646992. The cubic root of 219450133 is about 603.1777081662.

The spelling of 219450133 in words is "two hundred nineteen million, four hundred fifty thousand, one hundred thirty-three".