321845313 has 8 divisors (see below), whose sum is σ = 451712800. Its totient is φ = 203270688.

The previous prime is 321845299. The next prime is 321845323. The reversal of 321845313 is 313548123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 321845313 - 2⁴ = 321845297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321845323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2823148 + ... + 2823261.

It is an arithmetic number, because the mean of its divisors is an integer number (56464100).

Almost surely, 2^321845313 is an apocalyptic number.

It is an amenable number.

321845313 is a deficient number, since it is larger than the sum of its proper divisors (129867487).

321845313 is a wasteful number, since it uses less digits than its factorization.

321845313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5646431.

The product of its digits is 8640, while the sum is 30.

The square root of 321845313 is about 17940.0477424114. The cubic root of 321845313 is about 685.3026265080.

The spelling of 321845313 in words is "three hundred twenty-one million, eight hundred forty-five thousand, three hundred thirteen".