542641 has 4 divisors (see below), whose sum is σ = 591984. Its totient is φ = 493300.

The previous prime is 542603. The next prime is 542683. The reversal of 542641 is 146245.

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 542641 - 2¹⁷ = 411569 is a prime.

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 a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542141) 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, 24655 + ... + 24676.

It is an arithmetic number, because the mean of its divisors is an integer number (147996).

2⁵⁴²⁶⁴¹ is an apocalyptic number.

It is an amenable number.

542641 is a deficient number, since it is larger than the sum of its proper divisors (49343).

542641 is a wasteful number, since it uses less digits than its factorization.

542641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49342.

The product of its digits is 960, while the sum is 22.

The square root of 542641 is about 736.6417039511. The cubic root of 542641 is about 81.5650677886.

Adding to 542641 its reverse (146245), we get a palindrome (688886).

The spelling of 542641 in words is "five hundred forty-two thousand, six hundred forty-one".