540571131 has 8 divisors (see below), whose sum is σ = 800846160. Its totient is φ = 360380736.

The previous prime is 540571123. The next prime is 540571153. The reversal of 540571131 is 131175045.

540571131 is a `hidden beast` number, since 540 + 5 + 7 + 113 + 1 = 666.

It is not a de Polignac number, because 540571131 - 2³ = 540571123 is a prime.

It is a super-2 number, since 2×540571131² = 584434295341238322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 20021153 = 540571131 / (5 + 4 + 0 + 5 + 7 + 1 + 1 + 3 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 540571095 and 540571104.

It is not an unprimeable number, because it can be changed into a prime (540571121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10010550 + ... + 10010603.

It is an arithmetic number, because the mean of its divisors is an integer number (100105770).

Almost surely, 2^540571131 is an apocalyptic number.

540571131 is a deficient number, since it is larger than the sum of its proper divisors (260275029).

540571131 is a wasteful number, since it uses less digits than its factorization.

540571131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20021162 (or 20021156 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 540571131 is about 23250.1856121623. The cubic root of 540571131 is about 814.6122742034.

The spelling of 540571131 in words is "five hundred forty million, five hundred seventy-one thousand, one hundred thirty-one".