165334453 has 4 divisors (see below), whose sum is σ = 165993408. Its totient is φ = 164675500.

The previous prime is 165334451. The next prime is 165334457. The reversal of 165334453 is 354433561.

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 165334453 - 2¹ = 165334451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165334451) 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, 329101 + ... + 329602.

It is an arithmetic number, because the mean of its divisors is an integer number (41498352).

Almost surely, 2^165334453 is an apocalyptic number.

It is an amenable number.

165334453 is a deficient number, since it is larger than the sum of its proper divisors (658955).

165334453 is an equidigital number, since it uses as much as digits as its factorization.

165334453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658954.

The product of its digits is 64800, while the sum is 34.

The square root of 165334453 is about 12858.2445535928. The cubic root of 165334453 is about 548.8509930124.

The spelling of 165334453 in words is "one hundred sixty-five million, three hundred thirty-four thousand, four hundred fifty-three".