540575709 has 8 divisors (see below), whose sum is σ = 722531520. Its totient is φ = 359501856.

The previous prime is 540575701. The next prime is 540575713. The reversal of 540575709 is 907575045.

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

It is not a de Polignac number, because 540575709 - 2³ = 540575701 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540575701) 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, 219057 + ... + 221510.

It is an arithmetic number, because the mean of its divisors is an integer number (90316440).

Almost surely, 2^540575709 is an apocalyptic number.

It is an amenable number.

540575709 is a deficient number, since it is larger than the sum of its proper divisors (181955811).

540575709 is a wasteful number, since it uses less digits than its factorization.

540575709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440979.

The product of its (nonzero) digits is 220500, while the sum is 42.

The square root of 540575709 is about 23250.2840627808. The cubic root of 540575709 is about 814.6145737987.

The spelling of 540575709 in words is "five hundred forty million, five hundred seventy-five thousand, seven hundred nine".