42193219 has 2 divisors, whose sum is σ = 42193220. Its totient is φ = 42193218.

The previous prime is 42193213. The next prime is 42193253. The reversal of 42193219 is 91239124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42193219 - 2⁵ = 42193187 is a prime.

It is a super-2 number, since 2×42193219² = 3560535459163922, which contains 22 as substring.

It is equal to p_2558632 and since 42193219 and 2558632 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (42193213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21096609 + 21096610.

It is an arithmetic number, because the mean of its divisors is an integer number (21096610).

Almost surely, 2^42193219 is an apocalyptic number.

42193219 is a deficient number, since it is larger than the sum of its proper divisors (1).

42193219 is an equidigital number, since it uses as much as digits as its factorization.

42193219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 31.

The square root of 42193219 is about 6495.6307622894. The cubic root of 42193219 is about 348.1348923267.

The spelling of 42193219 in words is "forty-two million, one hundred ninety-three thousand, two hundred nineteen".