540304133 has 8 divisors (see below), whose sum is σ = 560314200. Its totient is φ = 520386048.

The previous prime is 540304103. The next prime is 540304139. The reversal of 540304133 is 331403045.

It can be written as a sum of positive squares in 4 ways, for example, as 275493604 + 264810529 = 16598^2 + 16273^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 540304133 - 2⁶ = 540304069 is a prime.

It is a super-2 number, since 2×540304133² = 583857112273763378, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 540304099 and 540304108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540304139) 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, 10916 + ... + 34637.

It is an arithmetic number, because the mean of its divisors is an integer number (70039275).

Almost surely, 2^540304133 is an apocalyptic number.

It is an amenable number.

540304133 is a deficient number, since it is larger than the sum of its proper divisors (20010067).

540304133 is a wasteful number, since it uses less digits than its factorization.

540304133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45991.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 540304133 is about 23244.4430563522. The cubic root of 540304133 is about 814.4781348001.

Adding to 540304133 its reverse (331403045), we get a palindrome (871707178).

The spelling of 540304133 in words is "five hundred forty million, three hundred four thousand, one hundred thirty-three".