540089 has 8 divisors (see below), whose sum is σ = 605568. Its totient is φ = 477360.

The previous prime is 540079. The next prime is 540101. The reversal of 540089 is 980045.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-540089 is a prime.

It is a super-2 number, since 2×540089² = 583392255842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540079) 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 7 ways as a sum of consecutive naturals, for example, 257 + ... + 1070.

It is an arithmetic number, because the mean of its divisors is an integer number (75696).

2⁵⁴⁰⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

540089 is a deficient number, since it is larger than the sum of its proper divisors (65479).

540089 is a wasteful number, since it uses less digits than its factorization.

540089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 540089 is about 734.9074771697. The cubic root of 540089 is about 81.4370020145.

The spelling of 540089 in words is "five hundred forty thousand, eighty-nine".