541549 has 2 divisors, whose sum is σ = 541550. Its totient is φ = 541548.

The previous prime is 541547. The next prime is 541571. The reversal of 541549 is 945145.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 532900 + 8649 = 730^2 + 93^2 .

It is a cyclic number.

It is not a de Polignac number, because 541549 - 2¹ = 541547 is a prime.

Together with 541547, it forms a pair of twin primes.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (541543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270774 + 270775.

It is an arithmetic number, because the mean of its divisors is an integer number (270775).

2⁵⁴¹⁵⁴⁹ is an apocalyptic number.

It is an amenable number.

541549 is a deficient number, since it is larger than the sum of its proper divisors (1).

541549 is an equidigital number, since it uses as much as digits as its factorization.

541549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 28.

The square root of 541549 is about 735.9001290936. The cubic root of 541549 is about 81.5103177372.

The spelling of 541549 in words is "five hundred forty-one thousand, five hundred forty-nine".