442141613 has 2 divisors, whose sum is σ = 442141614. Its totient is φ = 442141612.

The previous prime is 442141573. The next prime is 442141619. The reversal of 442141613 is 316141244.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 316768804 + 125372809 = 17798^2 + 11197^2 .

It is a cyclic number.

It is not a de Polignac number, because 442141613 - 2²⁴ = 425364397 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442141619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221070806 + 221070807.

It is an arithmetic number, because the mean of its divisors is an integer number (221070807).

Almost surely, 2^442141613 is an apocalyptic number.

It is an amenable number.

442141613 is a deficient number, since it is larger than the sum of its proper divisors (1).

442141613 is an equidigital number, since it uses as much as digits as its factorization.

442141613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 26.

The square root of 442141613 is about 21027.1636936606. The cubic root of 442141613 is about 761.8225033957.

Adding to 442141613 its reverse (316141244), we get a palindrome (758282857).

The spelling of 442141613 in words is "four hundred forty-two million, one hundred forty-one thousand, six hundred thirteen".