541444639 has 2 divisors, whose sum is σ = 541444640. Its totient is φ = 541444638.

The previous prime is 541444637. The next prime is 541444727. The reversal of 541444639 is 936444145.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 541444639 - 2¹ = 541444637 is a prime.

Together with 541444637, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (541444637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270722319 + 270722320.

It is an arithmetic number, because the mean of its divisors is an integer number (270722320).

Almost surely, 2^541444639 is an apocalyptic number.

541444639 is a deficient number, since it is larger than the sum of its proper divisors (1).

541444639 is an equidigital number, since it uses as much as digits as its factorization.

541444639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 40.

The square root of 541444639 is about 23268.9629979507. The cubic root of 541444639 is about 815.0508149530.

The spelling of 541444639 in words is "five hundred forty-one million, four hundred forty-four thousand, six hundred thirty-nine".