444413131 has 2 divisors, whose sum is σ = 444413132. Its totient is φ = 444413130.

The previous prime is 444413129. The next prime is 444413141. The reversal of 444413131 is 131314444.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 444413131 - 2¹ = 444413129 is a prime.

It is a super-2 number, since 2×444413131² = 395006062010446322, which contains 22 as substring.

Together with 444413129, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 444413096 and 444413105.

It is not a weakly prime, because it can be changed into another prime (444413111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222206565 + 222206566.

It is an arithmetic number, because the mean of its divisors is an integer number (222206566).

Almost surely, 2^444413131 is an apocalyptic number.

444413131 is a deficient number, since it is larger than the sum of its proper divisors (1).

444413131 is an equidigital number, since it uses as much as digits as its factorization.

444413131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 25.

The square root of 444413131 is about 21081.1083911639. The cubic root of 444413131 is about 763.1249054750.

Adding to 444413131 its reverse (131314444), we get a palindrome (575727575).

The spelling of 444413131 in words is "four hundred forty-four million, four hundred thirteen thousand, one hundred thirty-one".