818145323 has 4 divisors (see below), whose sum is σ = 821718240. Its totient is φ = 814572408.

The previous prime is 818145313. The next prime is 818145329. The reversal of 818145323 is 323541818.

It is a happy number.

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 818145323 - 2¹² = 818141227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (818145329) 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, 1786115 + ... + 1786572.

It is an arithmetic number, because the mean of its divisors is an integer number (205429560).

Almost surely, 2^818145323 is an apocalyptic number.

818145323 is a deficient number, since it is larger than the sum of its proper divisors (3572917).

818145323 is a wasteful number, since it uses less digits than its factorization.

818145323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3572916.

The product of its digits is 23040, while the sum is 35.

The square root of 818145323 is about 28603.2397290936. The cubic root of 818145323 is about 935.2839550492.

The spelling of 818145323 in words is "eight hundred eighteen million, one hundred forty-five thousand, three hundred twenty-three".