539447641 has 2 divisors, whose sum is σ = 539447642. Its totient is φ = 539447640.

The previous prime is 539447633. The next prime is 539447653. The reversal of 539447641 is 146744935.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 308529225 + 230918416 = 17565^2 + 15196^2 .

It is a cyclic number.

It is not a de Polignac number, because 539447641 - 2³ = 539447633 is a prime.

It is not a weakly prime, because it can be changed into another prime (539447611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269723820 + 269723821.

It is an arithmetic number, because the mean of its divisors is an integer number (269723821).

Almost surely, 2^539447641 is an apocalyptic number.

It is an amenable number.

539447641 is a deficient number, since it is larger than the sum of its proper divisors (1).

539447641 is an equidigital number, since it uses as much as digits as its factorization.

539447641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 43.

The square root of 539447641 is about 23226.0121630899. The cubic root of 539447641 is about 814.0475359957.

It can be divided in two parts, 5394 and 47641, that added together give a palindrome (53035).

The spelling of 539447641 in words is "five hundred thirty-nine million, four hundred forty-seven thousand, six hundred forty-one".