521419219 has 2 divisors, whose sum is σ = 521419220. Its totient is φ = 521419218.

The previous prime is 521419193. The next prime is 521419231. The reversal of 521419219 is 912914125.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 521419219 - 2⁵ = 521419187 is a prime.

It is a super-2 number, since 2×521419219² = 543756003885139922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (521419279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260709609 + 260709610.

It is an arithmetic number, because the mean of its divisors is an integer number (260709610).

Almost surely, 2^521419219 is an apocalyptic number.

521419219 is a deficient number, since it is larger than the sum of its proper divisors (1).

521419219 is an equidigital number, since it uses as much as digits as its factorization.

521419219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 34.

The square root of 521419219 is about 22834.6057334039. The cubic root of 521419219 is about 804.8760628610.

The spelling of 521419219 in words is "five hundred twenty-one million, four hundred nineteen thousand, two hundred nineteen".