539283140881 has 9 divisors (see below), whose sum is σ = 557264064123. Its totient is φ = 521864879760.

The previous prime is 539283140833. The next prime is 539283140887. The reversal of 539283140881 is 188041382935.

It is a happy number.

The square root of 539283140881 is 734359.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 13077980881 + 526205160000 = 114359^2 + 725400^2 .

It is not a de Polignac number, because 539283140881 - 2¹¹ = 539283138833 is a prime.

It is a super-2 number, since 2×539283140881² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (539283140887) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 22753285 + ... + 22776973.

It is an arithmetic number, because the mean of its divisors is an integer number (61918229347).

Almost surely, 2^539283140881 is an apocalyptic number.

539283140881 is the 734359-th square number.

539283140881 is the 367180-th centered octagonal number.

It is an amenable number.

539283140881 is a deficient number, since it is larger than the sum of its proper divisors (17980923242).

539283140881 is an frugal number, since it uses more digits than its factorization.

539283140881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47440 (or 23720 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 52.

The spelling of 539283140881 in words is "five hundred thirty-nine billion, two hundred eighty-three million, one hundred forty thousand, eight hundred eighty-one".