345170321 has 8 divisors (see below), whose sum is σ = 363616320. Its totient is φ = 326752272.

The previous prime is 345170317. The next prime is 345170323. The reversal of 345170321 is 123071543.

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

It is not a de Polignac number, because 345170321 - 2² = 345170317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345170323) 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, 21356 + ... + 33858.

It is an arithmetic number, because the mean of its divisors is an integer number (45452040).

Almost surely, 2^345170321 is an apocalyptic number.

It is an amenable number.

345170321 is a deficient number, since it is larger than the sum of its proper divisors (18445999).

345170321 is a wasteful number, since it uses less digits than its factorization.

345170321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13975.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 345170321 is about 18578.7599424719. The cubic root of 345170321 is about 701.4733057682.

The spelling of 345170321 in words is "three hundred forty-five million, one hundred seventy thousand, three hundred twenty-one".