541999 has 2 divisors, whose sum is σ = 542000. Its totient is φ = 541998.

The previous prime is 541993. The next prime is 542021. The reversal of 541999 is 999145.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 541999 - 2³ = 541991 is a prime.

It is a Chen prime.

541999 is a modest number, since divided by 999 gives 541 as remainder.

541999 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (541991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270999 + 271000.

It is an arithmetic number, because the mean of its divisors is an integer number (271000).

2⁵⁴¹⁹⁹⁹ is an apocalyptic number.

541999 is a deficient number, since it is larger than the sum of its proper divisors (1).

541999 is an equidigital number, since it uses as much as digits as its factorization.

541999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14580, while the sum is 37.

The square root of 541999 is about 736.2058136146. The cubic root of 541999 is about 81.5328884791.

It can be divided in two parts, 541 and 999, that added together give a triangular number (1540 = T₅₅).

The spelling of 541999 in words is "five hundred forty-one thousand, nine hundred ninety-nine".