42013219 has 2 divisors, whose sum is σ = 42013220. Its totient is φ = 42013218.

The previous prime is 42013217. The next prime is 42013243. The reversal of 42013219 is 91231024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42013219 - 2¹ = 42013217 is a prime.

It is a super-2 number, since 2×42013219² = 3530221141483922, which contains 22 as substring.

Together with 42013217, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 42013219.

It is not a weakly prime, because it can be changed into another prime (42013211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21006609 + 21006610.

It is an arithmetic number, because the mean of its divisors is an integer number (21006610).

Almost surely, 2^42013219 is an apocalyptic number.

42013219 is a deficient number, since it is larger than the sum of its proper divisors (1).

42013219 is an equidigital number, since it uses as much as digits as its factorization.

42013219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 42013219 is about 6481.7604861642. The cubic root of 42013219 is about 347.6391285969.

The spelling of 42013219 in words is "forty-two million, thirteen thousand, two hundred nineteen".