165452101 has 4 divisors (see below), whose sum is σ = 165652992. Its totient is φ = 165251212.

The previous prime is 165452099. The next prime is 165452137. The reversal of 165452101 is 101254561.

It is a happy number.

165452101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 165452101 - 2¹ = 165452099 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 (165452141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99205 + ... + 100858.

It is an arithmetic number, because the mean of its divisors is an integer number (41413248).

Almost surely, 2^165452101 is an apocalyptic number.

It is an amenable number.

165452101 is a deficient number, since it is larger than the sum of its proper divisors (200891).

165452101 is an equidigital number, since it uses as much as digits as its factorization.

165452101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200890.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 165452101 is about 12862.8185480477. The cubic root of 165452101 is about 548.9811451792.

The spelling of 165452101 in words is "one hundred sixty-five million, four hundred fifty-two thousand, one hundred one".