539129081 has 4 divisors (see below), whose sum is σ = 540210000. Its totient is φ = 538048164.

The previous prime is 539129077. The next prime is 539129119. The reversal of 539129081 is 180921935.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 539129081 - 2² = 539129077 is a prime.

It is a super-2 number, since 2×539129081² = 581320331959809122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (539129021) 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 in 3 ways as a sum of consecutive naturals, for example, 539711 + ... + 540708.

It is an arithmetic number, because the mean of its divisors is an integer number (135052500).

Almost surely, 2^539129081 is an apocalyptic number.

It is an amenable number.

539129081 is a deficient number, since it is larger than the sum of its proper divisors (1080919).

539129081 is a wasteful number, since it uses less digits than its factorization.

539129081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080918.

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 539129081 is about 23219.1533222036. The cubic root of 539129081 is about 813.8872646205.

The spelling of 539129081 in words is "five hundred thirty-nine million, one hundred twenty-nine thousand, eighty-one".