68610143 has 24 divisors (see below), whose sum is σ = 84214080. Its totient is φ = 55648320.

The previous prime is 68610133. The next prime is 68610151. The reversal of 68610143 is 34101686.

It is not a de Polignac number, because 68610143 - 2¹⁰ = 68609119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68610133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74858 + ... + 75768.

It is an arithmetic number, because the mean of its divisors is an integer number (3508920).

Almost surely, 2^68610143 is an apocalyptic number.

68610143 is a deficient number, since it is larger than the sum of its proper divisors (15603937).

68610143 is a wasteful number, since it uses less digits than its factorization.

68610143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007 (or 1000 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 68610143 is about 8283.1239879649. The cubic root of 68610143 is about 409.3826580779.

The spelling of 68610143 in words is "sixty-eight million, six hundred ten thousand, one hundred forty-three".