542047 has 4 divisors (see below), whose sum is σ = 591336. Its totient is φ = 492760.

The previous prime is 542027. The next prime is 542053. The reversal of 542047 is 740245.

542047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24628 + ... + 24649.

It is an arithmetic number, because the mean of its divisors is an integer number (147834).

2⁵⁴²⁰⁴⁷ is an apocalyptic number.

542047 is a deficient number, since it is larger than the sum of its proper divisors (49289).

542047 is a wasteful number, since it uses less digits than its factorization.

542047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49288.

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

The square root of 542047 is about 736.2384124725. The cubic root of 542047 is about 81.5352952874.

The spelling of 542047 in words is "five hundred forty-two thousand, forty-seven".