539147569 has 2 divisors, whose sum is σ = 539147570. Its totient is φ = 539147568.

The previous prime is 539147549. The next prime is 539147579. The reversal of 539147569 is 965741935.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 272250000 + 266897569 = 16500^2 + 16337^2 .

It is a cyclic number.

It is not a de Polignac number, because 539147569 - 2²⁷ = 404929841 is a prime.

It is a super-2 number, since 2×539147569² = 581360202317219522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (539147519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269573784 + 269573785.

It is an arithmetic number, because the mean of its divisors is an integer number (269573785).

Almost surely, 2^539147569 is an apocalyptic number.

It is an amenable number.

539147569 is a deficient number, since it is larger than the sum of its proper divisors (1).

539147569 is an equidigital number, since it uses as much as digits as its factorization.

539147569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1020600, while the sum is 49.

The square root of 539147569 is about 23219.5514383892. The cubic root of 539147569 is about 813.8965678815.

The spelling of 539147569 in words is "five hundred thirty-nine million, one hundred forty-seven thousand, five hundred sixty-nine".