323316145 has 4 divisors (see below), whose sum is σ = 387979380. Its totient is φ = 258652912.

The previous prime is 323316139. The next prime is 323316151. The reversal of 323316145 is 541613323.

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

It is an interprime number because it is at equal distance from previous prime (323316139) and next prime (323316151).

It can be written as a sum of positive squares in 2 ways, for example, as 244390689 + 78925456 = 15633^2 + 8884^2 .

It is a cyclic number.

It is not a de Polignac number, because 323316145 - 2⁷ = 323316017 is a prime.

It is a super-2 number, since 2×323316145² = 209066659235322050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32331610 + ... + 32331619.

It is an arithmetic number, because the mean of its divisors is an integer number (96994845).

Almost surely, 2^323316145 is an apocalyptic number.

It is an amenable number.

323316145 is a deficient number, since it is larger than the sum of its proper divisors (64663235).

323316145 is an equidigital number, since it uses as much as digits as its factorization.

323316145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64663234.

The product of its digits is 6480, while the sum is 28.

The square root of 323316145 is about 17980.9939936590. The cubic root of 323316145 is about 686.3449838279.

Adding to 323316145 its reverse (541613323), we get a palindrome (864929468).

The spelling of 323316145 in words is "three hundred twenty-three million, three hundred sixteen thousand, one hundred forty-five".