133400219 has 4 divisors (see below), whose sum is σ = 133919544. Its totient is φ = 132880896.

The previous prime is 133400213. The next prime is 133400221. The reversal of 133400219 is 912004331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133400219 - 2¹⁶ = 133334683 is a prime.

It is a super-2 number, since 2×133400219² = 35591236858495922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133400194 and 133400203.

It is not an unprimeable number, because it can be changed into a prime (133400213) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 259277 + ... + 259790.

It is an arithmetic number, because the mean of its divisors is an integer number (33479886).

Almost surely, 2^133400219 is an apocalyptic number.

133400219 is a deficient number, since it is larger than the sum of its proper divisors (519325).

133400219 is an equidigital number, since it uses as much as digits as its factorization.

133400219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519324.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 133400219 is about 11549.9012549892. The cubic root of 133400219 is about 510.9583658441.

The spelling of 133400219 in words is "one hundred thirty-three million, four hundred thousand, two hundred nineteen".