845313 has 8 divisors (see below), whose sum is σ = 1288128. Its totient is φ = 483024.

The previous prime is 845309. The next prime is 845333. The reversal of 845313 is 313548.

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

It is not a de Polignac number, because 845313 - 2² = 845309 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (845303) 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, 20106 + ... + 20147.

It is an arithmetic number, because the mean of its divisors is an integer number (161016).

2⁸⁴⁵³¹³ is an apocalyptic number.

It is an amenable number.

845313 is a deficient number, since it is larger than the sum of its proper divisors (442815).

845313 is a wasteful number, since it uses less digits than its factorization.

845313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40263.

The product of its digits is 1440, while the sum is 24.

The square root of 845313 is about 919.4090493355. The cubic root of 845313 is about 94.5523910939.

The spelling of 845313 in words is "eight hundred forty-five thousand, three hundred thirteen".