540007 has 4 divisors (see below), whose sum is σ = 581560. Its totient is φ = 498456.

The previous prime is 539993. The next prime is 540041. The reversal of 540007 is 700045.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 700045 = 5 ⋅140009.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-540007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540307) 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, 20757 + ... + 20782.

It is an arithmetic number, because the mean of its divisors is an integer number (145390).

2⁵⁴⁰⁰⁰⁷ is an apocalyptic number.

540007 is a deficient number, since it is larger than the sum of its proper divisors (41553).

540007 is a wasteful number, since it uses less digits than its factorization.

540007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41552.

The product of its (nonzero) digits is 140, while the sum is 16.

The square root of 540007 is about 734.8516857162. The cubic root of 540007 is about 81.4328803653.

The spelling of 540007 in words is "five hundred forty thousand, seven".