323320545 has 64 divisors (see below), whose sum is σ = 619315200. Its totient is φ = 159572160.

The previous prime is 323320523. The next prime is 323320553. The reversal of 323320545 is 545023323.

It is not a de Polignac number, because 323320545 - 2⁵ = 323320513 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 94576 + ... + 97934.

It is an arithmetic number, because the mean of its divisors is an integer number (9676800).

Almost surely, 2^323320545 is an apocalyptic number.

It is an amenable number.

323320545 is a deficient number, since it is larger than the sum of its proper divisors (295994655).

323320545 is a wasteful number, since it uses less digits than its factorization.

323320545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3427 (or 3421 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 27.

The square root of 323320545 is about 17981.1163446545. The cubic root of 323320545 is about 686.3480972968.

Adding to 323320545 its reverse (545023323), we get a palindrome (868343868).

The spelling of 323320545 in words is "three hundred twenty-three million, three hundred twenty thousand, five hundred forty-five".