165341723 has 4 divisors (see below), whose sum is σ = 168859680. Its totient is φ = 161823768.

The previous prime is 165341717. The next prime is 165341741. The reversal of 165341723 is 327143561.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 165341723 - 2¹⁴ = 165325339 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 165341723.

It is not an unprimeable number, because it can be changed into a prime (165341783) 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, 1758908 + ... + 1759001.

It is an arithmetic number, because the mean of its divisors is an integer number (42214920).

Almost surely, 2^165341723 is an apocalyptic number.

165341723 is a deficient number, since it is larger than the sum of its proper divisors (3517957).

165341723 is an equidigital number, since it uses as much as digits as its factorization.

165341723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3517956.

The product of its digits is 15120, while the sum is 32.

The square root of 165341723 is about 12858.5272484838. The cubic root of 165341723 is about 548.8590374907.

The spelling of 165341723 in words is "one hundred sixty-five million, three hundred forty-one thousand, seven hundred twenty-three".