201520219 has 2 divisors, whose sum is σ = 201520220. Its totient is φ = 201520218.

The previous prime is 201520199. The next prime is 201520237. The reversal of 201520219 is 912025102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201520219 - 2¹⁷ = 201389147 is a prime.

It is a super-2 number, since 2×201520219² = 81220797331615922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201520219.

It is not a weakly prime, because it can be changed into another prime (201520279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100760109 + 100760110.

It is an arithmetic number, because the mean of its divisors is an integer number (100760110).

Almost surely, 2^201520219 is an apocalyptic number.

201520219 is a deficient number, since it is larger than the sum of its proper divisors (1).

201520219 is an equidigital number, since it uses as much as digits as its factorization.

201520219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 201520219 is about 14195.7817326134. The cubic root of 201520219 is about 586.2815249693.

The spelling of 201520219 in words is "two hundred one million, five hundred twenty thousand, two hundred nineteen".