540131 has 4 divisors (see below), whose sum is σ = 544512. Its totient is φ = 535752.

The previous prime is 540121. The next prime is 540139. The reversal of 540131 is 131045.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131045 = 5 ⋅26209.

It is a cyclic number.

It is not a de Polignac number, because 540131 - 2¹⁰ = 539107 is a prime.

It is a super-2 number, since 2×540131² = 583482994322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2000 + ... + 2253.

It is an arithmetic number, because the mean of its divisors is an integer number (136128).

2⁵⁴⁰¹³¹ is an apocalyptic number.

540131 is a deficient number, since it is larger than the sum of its proper divisors (4381).

540131 is a wasteful number, since it uses less digits than its factorization.

540131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4380.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 540131 is about 734.9360516399. The cubic root of 540131 is about 81.4391129415.

Adding to 540131 its reverse (131045), we get a palindrome (671176).

The spelling of 540131 in words is "five hundred forty thousand, one hundred thirty-one".