30444131 has 2 divisors, whose sum is σ = 30444132. Its totient is φ = 30444130.

The previous prime is 30444119. The next prime is 30444133. The reversal of 30444131 is 13144403.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30444131 is a prime.

It is a super-2 number, since 2×30444131² = 1853690224690322, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 30444133, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30444133) 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, 15222065 + 15222066.

It is an arithmetic number, because the mean of its divisors is an integer number (15222066).

Almost surely, 2^30444131 is an apocalyptic number.

30444131 is a deficient number, since it is larger than the sum of its proper divisors (1).

30444131 is an equidigital number, since it uses as much as digits as its factorization.

30444131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 30444131 is about 5517.6200485354. The cubic root of 30444131 is about 312.2490990899.

Adding to 30444131 its reverse (13144403), we get a palindrome (43588534).

The spelling of 30444131 in words is "thirty million, four hundred forty-four thousand, one hundred thirty-one".