645314 has 8 divisors (see below), whose sum is σ = 972048. Its totient is φ = 321300.

The previous prime is 645313. The next prime is 645329. The reversal of 645314 is 413546.

It is a happy number.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 645314.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 645314.

It is not an unprimeable number, because it can be changed into a prime (645313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89 + ... + 1139.

It is an arithmetic number, because the mean of its divisors is an integer number (121506).

2⁶⁴⁵³¹⁴ is an apocalyptic number.

645314 is a deficient number, since it is larger than the sum of its proper divisors (326734).

645314 is a wasteful number, since it uses less digits than its factorization.

645314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360.

The product of its digits is 1440, while the sum is 23.

The square root of 645314 is about 803.3143842855. The cubic root of 645314 is about 86.4152443666.

It can be divided in two parts, 645 and 314, that added together give a palindrome (959).

The spelling of 645314 in words is "six hundred forty-five thousand, three hundred fourteen".