165298727 has 24 divisors (see below), whose sum is σ = 196375680. Its totient is φ = 137602800.

The previous prime is 165298709. The next prime is 165298741. The reversal of 165298727 is 727892561.

It is a happy number.

It is not a de Polignac number, because 165298727 - 2¹² = 165294631 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165298747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 200438 + ... + 201260.

It is an arithmetic number, because the mean of its divisors is an integer number (8182320).

Almost surely, 2^165298727 is an apocalyptic number.

165298727 is a deficient number, since it is larger than the sum of its proper divisors (31076953).

165298727 is a wasteful number, since it uses less digits than its factorization.

165298727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915 (or 884 counting only the distinct ones).

The product of its digits is 423360, while the sum is 47.

The square root of 165298727 is about 12856.8552531325. The cubic root of 165298727 is about 548.8114576691.

It can be divided in two parts, 165 and 298727, that added together give a palindrome (298892).

The spelling of 165298727 in words is "one hundred sixty-five million, two hundred ninety-eight thousand, seven hundred twenty-seven".