165000727 has 4 divisors (see below), whose sum is σ = 165038080. Its totient is φ = 164963376.

The previous prime is 165000721. The next prime is 165000779. The reversal of 165000727 is 727000561.

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

It is a cyclic number.

It is not a de Polignac number, because 165000727 - 2¹⁹ = 164476439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165000695 and 165000704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165000721) 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, 10998 + ... + 21235.

It is an arithmetic number, because the mean of its divisors is an integer number (41259520).

Almost surely, 2^165000727 is an apocalyptic number.

165000727 is a deficient number, since it is larger than the sum of its proper divisors (37353).

165000727 is an equidigital number, since it uses as much as digits as its factorization.

165000727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37352.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 165000727 is about 12845.2608770706. The cubic root of 165000727 is about 548.4814607884.

The spelling of 165000727 in words is "one hundred sixty-five million, seven hundred twenty-seven", and thus it is an aban number.