321369245 has 8 divisors (see below), whose sum is σ = 389619384. Its totient is φ = 254444544.

The previous prime is 321369187. The next prime is 321369259. The reversal of 321369245 is 542963123.

It can be written as a sum of positive squares in 4 ways, for example, as 52606009 + 268763236 = 7253^2 + 16394^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 321369245 - 2⁸ = 321368989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330824 + ... + 331793.

It is an arithmetic number, because the mean of its divisors is an integer number (48702423).

Almost surely, 2^321369245 is an apocalyptic number.

It is an amenable number.

321369245 is a deficient number, since it is larger than the sum of its proper divisors (68250139).

321369245 is an equidigital number, since it uses as much as digits as its factorization.

321369245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662719.

The product of its digits is 38880, while the sum is 35.

The square root of 321369245 is about 17926.7745286206. The cubic root of 321369245 is about 684.9645638514.

The spelling of 321369245 in words is "three hundred twenty-one million, three hundred sixty-nine thousand, two hundred forty-five".