165964241 has 8 divisors (see below), whose sum is σ = 166907904. Its totient is φ = 165024000.

The previous prime is 165964237. The next prime is 165964261. The reversal of 165964241 is 142469561.

165964241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 165964241 - 2² = 165964237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 165964195 and 165964204.

It is not an unprimeable number, because it can be changed into a prime (165964231) 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, 220616 + ... + 221366.

It is an arithmetic number, because the mean of its divisors is an integer number (20863488).

Almost surely, 2^165964241 is an apocalyptic number.

It is an amenable number.

165964241 is a deficient number, since it is larger than the sum of its proper divisors (943663).

165964241 is an equidigital number, since it uses as much as digits as its factorization.

165964241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1711.

The product of its digits is 51840, while the sum is 38.

The square root of 165964241 is about 12882.7109336506. The cubic root of 165964241 is about 549.5469999979.

The spelling of 165964241 in words is "one hundred sixty-five million, nine hundred sixty-four thousand, two hundred forty-one".