165201361 has 8 divisors (see below), whose sum is σ = 179191040. Its totient is φ = 151394832.

The previous prime is 165201343. The next prime is 165201373. The reversal of 165201361 is 163102561.

165201361 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 165201361 - 2²¹ = 163104209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165201301) 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, 43905 + ... + 47518.

It is an arithmetic number, because the mean of its divisors is an integer number (22398880).

Almost surely, 2^165201361 is an apocalyptic number.

It is an amenable number.

165201361 is a deficient number, since it is larger than the sum of its proper divisors (13989679).

165201361 is a wasteful number, since it uses less digits than its factorization.

165201361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91575.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 165201361 is about 12853.0681551138. The cubic root of 165201361 is about 548.7036809336.

The spelling of 165201361 in words is "one hundred sixty-five million, two hundred one thousand, three hundred sixty-one".