541813 has 4 divisors (see below), whose sum is σ = 544320. Its totient is φ = 539308.

The previous prime is 541799. The next prime is 541817. The reversal of 541813 is 318145.

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, and also an emirpimes, since its reverse is a distinct semiprime: 318145 = 5 ⋅63629.

It is a cyclic number.

It is not a de Polignac number, because 541813 - 2⁵ = 541781 is a prime.

It is a super-2 number, since 2×541813² = 587122653938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (541817) 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, 895 + ... + 1372.

It is an arithmetic number, because the mean of its divisors is an integer number (136080).

2⁵⁴¹⁸¹³ is an apocalyptic number.

It is an amenable number.

541813 is a deficient number, since it is larger than the sum of its proper divisors (2507).

541813 is a wasteful number, since it uses less digits than its factorization.

541813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2506.

The product of its digits is 480, while the sum is 22.

The square root of 541813 is about 736.0794794042. The cubic root of 541813 is about 81.5235607544.

Adding to 541813 its reverse (318145), we get a palindrome (859958).

The spelling of 541813 in words is "five hundred forty-one thousand, eight hundred thirteen".