540312001 has 4 divisors (see below), whose sum is σ = 540381652. Its totient is φ = 540242352.

The previous prime is 540311921. The next prime is 540312011. The reversal of 540312001 is 100213045.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 181171600 + 359140401 = 13460^2 + 18951^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-540312001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540312011) 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, 21486 + ... + 39271.

It is an arithmetic number, because the mean of its divisors is an integer number (135095413).

Almost surely, 2^540312001 is an apocalyptic number.

It is an amenable number.

540312001 is a deficient number, since it is larger than the sum of its proper divisors (69651).

540312001 is an equidigital number, since it uses as much as digits as its factorization.

540312001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69650.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 540312001 is about 23244.6123004880. The cubic root of 540312001 is about 814.4820883036.

Adding to 540312001 its reverse (100213045), we get a palindrome (640525046).

The spelling of 540312001 in words is "five hundred forty million, three hundred twelve thousand, one".