541643 has 4 divisors (see below), whose sum is σ = 556320. Its totient is φ = 526968.

The previous prime is 541631. The next prime is 541657. The reversal of 541643 is 346145.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 541643 - 2⁶ = 541579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (541613) 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, 7283 + ... + 7356.

It is an arithmetic number, because the mean of its divisors is an integer number (139080).

2⁵⁴¹⁶⁴³ is an apocalyptic number.

541643 is a deficient number, since it is larger than the sum of its proper divisors (14677).

541643 is a wasteful number, since it uses less digits than its factorization.

541643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14676.

The product of its digits is 1440, while the sum is 23.

The square root of 541643 is about 735.9639936845. The cubic root of 541643 is about 81.5150335473.

Adding to 541643 its reverse (346145), we get a palindrome (887788).

The spelling of 541643 in words is "five hundred forty-one thousand, six hundred forty-three".