645114 has 16 divisors (see below), whose sum is σ = 1307520. Its totient is φ = 212160.

The previous prime is 645097. The next prime is 645131. The reversal of 645114 is 411546.

It is an interprime number because it is at equal distance from previous prime (645097) and next prime (645131).

It is an Ulam number.

It is a cake number, because a cake can be divided into 645114 parts by 157 planar cuts.

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, 207 + ... + 1154.

It is an arithmetic number, because the mean of its divisors is an integer number (81720).

2⁶⁴⁵¹¹⁴ is an apocalyptic number.

645114 is an abundant number, since it is smaller than the sum of its proper divisors (662406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

645114 is a wasteful number, since it uses less digits than its factorization.

645114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445.

The product of its digits is 480, while the sum is 21.

The square root of 645114 is about 803.1898903746. The cubic root of 645114 is about 86.4063159820.

The spelling of 645114 in words is "six hundred forty-five thousand, one hundred fourteen".