165434545 has 8 divisors (see below), whose sum is σ = 203138496. Its totient is φ = 129269616.

The previous prime is 165434527. The next prime is 165434573. The reversal of 165434545 is 545434561.

165434545 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 165434545 - 2¹¹ = 165432497 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384517 + ... + 384946.

It is an arithmetic number, because the mean of its divisors is an integer number (25392312).

Almost surely, 2^165434545 is an apocalyptic number.

It is an amenable number.

165434545 is a deficient number, since it is larger than the sum of its proper divisors (37703951).

165434545 is an equidigital number, since it uses as much as digits as its factorization.

165434545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769511.

The product of its digits is 144000, while the sum is 37.

The square root of 165434545 is about 12862.1360978649. The cubic root of 165434545 is about 548.9617271647.

The spelling of 165434545 in words is "one hundred sixty-five million, four hundred thirty-four thousand, five hundred forty-five".