539138265 has 16 divisors (see below), whose sum is σ = 873542400. Its totient is φ = 283900032.

The previous prime is 539138263. The next prime is 539138273. The reversal of 539138265 is 562831935.

It is not a de Polignac number, because 539138265 - 2¹ = 539138263 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (539138261) 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 in 15 ways as a sum of consecutive naturals, for example, 226300 + ... + 228669.

It is an arithmetic number, because the mean of its divisors is an integer number (54596400).

Almost surely, 2^539138265 is an apocalyptic number.

It is an amenable number.

539138265 is a deficient number, since it is larger than the sum of its proper divisors (334404135).

539138265 is a wasteful number, since it uses less digits than its factorization.

539138265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455056.

The product of its digits is 194400, while the sum is 42.

The square root of 539138265 is about 23219.3510891239. The cubic root of 539138265 is about 813.8918860853.

The spelling of 539138265 in words is "five hundred thirty-nine million, one hundred thirty-eight thousand, two hundred sixty-five".