645174314 has 8 divisors (see below), whose sum is σ = 971206308. Its totient is φ = 321438880.

The previous prime is 645174301. The next prime is 645174331. The reversal of 645174314 is 413471546.

It can be written as a sum of positive squares in 2 ways, for example, as 643890625 + 1283689 = 25375^2 + 1133^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 573437 + ... + 574560.

Almost surely, 2^645174314 is an apocalyptic number.

645174314 is a deficient number, since it is larger than the sum of its proper divisors (326031994).

645174314 is a wasteful number, since it uses less digits than its factorization.

645174314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148280.

The product of its digits is 40320, while the sum is 35.

The square root of 645174314 is about 25400.2817700907. The cubic root of 645174314 is about 864.0900870929.

The spelling of 645174314 in words is "six hundred forty-five million, one hundred seventy-four thousand, three hundred fourteen".