547081 has 4 divisors (see below), whose sum is σ = 549700. Its totient is φ = 544464.

The previous prime is 547061. The next prime is 547087. The reversal of 547081 is 180745.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 336400 + 210681 = 580^2 + 459^2 .

It is a cyclic number.

It is not a de Polignac number, because 547081 - 2⁹ = 546569 is a prime.

It is a super-2 number, since 2×547081² = 598595241122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (547087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 966 + ... + 1423.

It is an arithmetic number, because the mean of its divisors is an integer number (137425).

2⁵⁴⁷⁰⁸¹ is an apocalyptic number.

It is an amenable number.

547081 is a deficient number, since it is larger than the sum of its proper divisors (2619).

547081 is a wasteful number, since it uses less digits than its factorization.

547081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2618.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 547081 is about 739.6492411948. The cubic root of 547081 is about 81.7869244986.

The spelling of 547081 in words is "five hundred forty-seven thousand, eighty-one".