68173143 has 8 divisors (see below), whose sum is σ = 92438400. Its totient is φ = 44678328.

The previous prime is 68173139. The next prime is 68173151. The reversal of 68173143 is 34137186.

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

It is not a de Polignac number, because 68173143 - 2² = 68173139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68173153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192403 + ... + 192756.

It is an arithmetic number, because the mean of its divisors is an integer number (11554800).

Almost surely, 2^68173143 is an apocalyptic number.

68173143 is a deficient number, since it is larger than the sum of its proper divisors (24265257).

68173143 is a wasteful number, since it uses less digits than its factorization.

68173143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385221.

The product of its digits is 12096, while the sum is 33.

The square root of 68173143 is about 8256.7029133910. The cubic root of 68173143 is about 408.5116430560.

The spelling of 68173143 in words is "sixty-eight million, one hundred seventy-three thousand, one hundred forty-three".