165475241 has 4 divisors (see below), whose sum is σ = 170813184. Its totient is φ = 160137300.

The previous prime is 165475213. The next prime is 165475253. The reversal of 165475241 is 142574561.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 165475241 - 2²² = 161280937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165475201) 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 3 ways as a sum of consecutive naturals, for example, 2668925 + ... + 2668986.

It is an arithmetic number, because the mean of its divisors is an integer number (42703296).

Almost surely, 2^165475241 is an apocalyptic number.

It is an amenable number.

165475241 is a deficient number, since it is larger than the sum of its proper divisors (5337943).

165475241 is an equidigital number, since it uses as much as digits as its factorization.

165475241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5337942.

The product of its digits is 33600, while the sum is 35.

The square root of 165475241 is about 12863.7180084142. The cubic root of 165475241 is about 549.0067373424.

The spelling of 165475241 in words is "one hundred sixty-five million, four hundred seventy-five thousand, two hundred forty-one".