42113219 has 2 divisors, whose sum is σ = 42113220. Its totient is φ = 42113218.

The previous prime is 42113173. The next prime is 42113231. The reversal of 42113219 is 91231124.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42113219 is a prime.

It is a super-2 number, since 2×42113219² = 3547046429083922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 42113194 and 42113203.

It is not a weakly prime, because it can be changed into another prime (42113719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21056609 + 21056610.

It is an arithmetic number, because the mean of its divisors is an integer number (21056610).

Almost surely, 2^42113219 is an apocalyptic number.

42113219 is a deficient number, since it is larger than the sum of its proper divisors (1).

42113219 is an equidigital number, since it uses as much as digits as its factorization.

42113219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 23.

The square root of 42113219 is about 6489.4698550806. The cubic root of 42113219 is about 347.9147273122.

The spelling of 42113219 in words is "forty-two million, one hundred thirteen thousand, two hundred nineteen".