675640143 has 16 divisors (see below), whose sum is σ = 1004496640. Its totient is φ = 448830072.

The previous prime is 675640117. The next prime is 675640159. The reversal of 675640143 is 341046576.

It is a happy number.

675640143 is a `hidden beast` number, since 6 + 7 + 5 + 640 + 1 + 4 + 3 = 666.

675640143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 675640143 - 2¹² = 675636047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 675640098 and 675640107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675640103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36571 + ... + 51852.

It is an arithmetic number, because the mean of its divisors is an integer number (62781040).

Almost surely, 2^675640143 is an apocalyptic number.

675640143 is a deficient number, since it is larger than the sum of its proper divisors (328856497).

675640143 is a wasteful number, since it uses less digits than its factorization.

675640143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88715 (or 88709 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 675640143 is about 25993.0787518524. The cubic root of 675640143 is about 877.4825359955.

The spelling of 675640143 in words is "six hundred seventy-five million, six hundred forty thousand, one hundred forty-three".