981200219 has 2 divisors, whose sum is σ = 981200220. Its totient is φ = 981200218.

The previous prime is 981200201. The next prime is 981200243. The reversal of 981200219 is 912002189.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 981200219 - 2¹⁶ = 981134683 is a prime.

It is a super-2 number, since 2×981200219² = 1925507739531295922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (981200419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490600109 + 490600110.

It is an arithmetic number, because the mean of its divisors is an integer number (490600110).

Almost surely, 2^981200219 is an apocalyptic number.

981200219 is a deficient number, since it is larger than the sum of its proper divisors (1).

981200219 is an equidigital number, since it uses as much as digits as its factorization.

981200219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 981200219 is about 31324.1156140122. The cubic root of 981200219 is about 993.6937207741.

The spelling of 981200219 in words is "nine hundred eighty-one million, two hundred thousand, two hundred nineteen".