450143219 has 4 divisors (see below), whose sum is σ = 464664000. Its totient is φ = 435622440.

The previous prime is 450143203. The next prime is 450143303. The reversal of 450143219 is 912341054.

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 450143219 - 2⁴ = 450143203 is a prime.

It is a super-2 number, since 2×450143219² = 405257835223363922, 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 = 450143191 and 450143200.

It is not an unprimeable number, because it can be changed into a prime (450143819) 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, 7260344 + ... + 7260405.

It is an arithmetic number, because the mean of its divisors is an integer number (116166000).

Almost surely, 2^450143219 is an apocalyptic number.

450143219 is a deficient number, since it is larger than the sum of its proper divisors (14520781).

450143219 is a wasteful number, since it uses less digits than its factorization.

450143219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14520780.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 450143219 is about 21216.5788712507. The cubic root of 450143219 is about 766.3907201191.

The spelling of 450143219 in words is "four hundred fifty million, one hundred forty-three thousand, two hundred nineteen".