643141114 has 32 divisors (see below), whose sum is σ = 1225466496. Its totient is φ = 245843520.

The previous prime is 643141087. The next prime is 643141139. The reversal of 643141114 is 411141346.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31237 + ... + 47560.

It is an arithmetic number, because the mean of its divisors is an integer number (38295828).

Almost surely, 2^643141114 is an apocalyptic number.

643141114 is a deficient number, since it is larger than the sum of its proper divisors (582325382).

643141114 is a wasteful number, since it uses less digits than its factorization.

643141114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78870.

The product of its digits is 1152, while the sum is 25.

The square root of 643141114 is about 25360.2270100250. The cubic root of 643141114 is about 863.1814351240.

The spelling of 643141114 in words is "six hundred forty-three million, one hundred forty-one thousand, one hundred fourteen".