541591 has 4 divisors (see below), whose sum is σ = 543400. Its totient is φ = 539784.

The previous prime is 541589. The next prime is 541613. The reversal of 541591 is 195145.

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 541591 - 2¹ = 541589 is a prime.

It is a super-2 number, since 2×541591² = 586641622562, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (541511) 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, 336 + ... + 1093.

It is an arithmetic number, because the mean of its divisors is an integer number (135850).

2⁵⁴¹⁵⁹¹ is an apocalyptic number.

541591 is a deficient number, since it is larger than the sum of its proper divisors (1809).

541591 is a wasteful number, since it uses less digits than its factorization.

541591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1808.

The product of its digits is 900, while the sum is 25.

The square root of 541591 is about 735.9286650213. The cubic root of 541591 is about 81.5124248687.

The spelling of 541591 in words is "five hundred forty-one thousand, five hundred ninety-one".