68133197 has 8 divisors (see below), whose sum is σ = 74626272. Its totient is φ = 61690000.

The previous prime is 68133193. The next prime is 68133203. The reversal of 68133197 is 79133186.

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 68133197 - 2² = 68133193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68133197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68133193) 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, 9578 + ... + 15099.

It is an arithmetic number, because the mean of its divisors is an integer number (9328284).

Almost surely, 2^68133197 is an apocalyptic number.

It is an amenable number.

68133197 is a deficient number, since it is larger than the sum of its proper divisors (6493075).

68133197 is a wasteful number, since it uses less digits than its factorization.

68133197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24939.

The product of its digits is 27216, while the sum is 38.

The square root of 68133197 is about 8254.2835546157. The cubic root of 68133197 is about 408.4318384406.

The spelling of 68133197 in words is "sixty-eight million, one hundred thirty-three thousand, one hundred ninety-seven".