540666937 has 4 divisors (see below), whose sum is σ = 541334416. Its totient is φ = 539999460.

The previous prime is 540666883. The next prime is 540666943. The reversal of 540666937 is 739666045.

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.

It is a cyclic number.

It is not a de Polignac number, because 540666937 - 2⁷ = 540666809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540661937) 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, 332523 + ... + 334144.

It is an arithmetic number, because the mean of its divisors is an integer number (135333604).

Almost surely, 2^540666937 is an apocalyptic number.

It is an amenable number.

540666937 is a deficient number, since it is larger than the sum of its proper divisors (667479).

540666937 is an equidigital number, since it uses as much as digits as its factorization.

540666937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667478.

The product of its (nonzero) digits is 816480, while the sum is 46.

The square root of 540666937 is about 23252.2458485197. The cubic root of 540666937 is about 814.6603962290.

The spelling of 540666937 in words is "five hundred forty million, six hundred sixty-six thousand, nine hundred thirty-seven".