68694143 has 8 divisors (see below), whose sum is σ = 78777888. Its totient is φ = 58677984.

The previous prime is 68694137. The next prime is 68694167. The reversal of 68694143 is 34149686.

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

It is a cyclic number.

It is not a de Polignac number, because 68694143 - 2⁶ = 68694079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68694143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68694193) 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, 14696 + ... + 18797.

It is an arithmetic number, because the mean of its divisors is an integer number (9847236).

Almost surely, 2^68694143 is an apocalyptic number.

68694143 is a deficient number, since it is larger than the sum of its proper divisors (10083745).

68694143 is a wasteful number, since it uses less digits than its factorization.

68694143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33793.

The product of its digits is 124416, while the sum is 41.

The square root of 68694143 is about 8288.1929876180. The cubic root of 68694143 is about 409.5496602023.

The spelling of 68694143 in words is "sixty-eight million, six hundred ninety-four thousand, one hundred forty-three".