547042 has 4 divisors (see below), whose sum is σ = 820566. Its totient is φ = 273520.

The previous prime is 547037. The next prime is 547061. The reversal of 547042 is 240745.

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

It can be written as a sum of positive squares in only one way, i.e., 410881 + 136161 = 641^2 + 369^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a plaindrome in base 12.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136759 + ... + 136762.

2⁵⁴⁷⁰⁴² is an apocalyptic number.

547042 is a deficient number, since it is larger than the sum of its proper divisors (273524).

547042 is a wasteful number, since it uses less digits than its factorization.

547042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273523.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 547042 is about 739.6228768771. The cubic root of 547042 is about 81.7849809925.

Adding to 547042 its reverse (240745), we get a palindrome (787787).

The spelling of 547042 in words is "five hundred forty-seven thousand, forty-two".