165452785 has 8 divisors (see below), whose sum is σ = 198878400. Its totient is φ = 132138864.

The previous prime is 165452783. The next prime is 165452813. The reversal of 165452785 is 587254561.

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

It is a cyclic number.

It is not a de Polignac number, because 165452785 - 2¹ = 165452783 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (165452783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24627 + ... + 30616.

It is an arithmetic number, because the mean of its divisors is an integer number (24859800).

Almost surely, 2^165452785 is an apocalyptic number.

It is an amenable number.

165452785 is a deficient number, since it is larger than the sum of its proper divisors (33425615).

165452785 is an equidigital number, since it uses as much as digits as its factorization.

165452785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55847.

The product of its digits is 336000, while the sum is 43.

The square root of 165452785 is about 12862.8451362830. The cubic root of 165452785 is about 548.9819016974.

The spelling of 165452785 in words is "one hundred sixty-five million, four hundred fifty-two thousand, seven hundred eighty-five".