68135294 has 4 divisors (see below), whose sum is σ = 102202944. Its totient is φ = 34067646.

The previous prime is 68135293. The next prime is 68135323. The reversal of 68135294 is 49253186.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68135293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17033822 + ... + 17033825.

It is an arithmetic number, because the mean of its divisors is an integer number (25550736).

Almost surely, 2^68135294 is an apocalyptic number.

68135294 is a deficient number, since it is larger than the sum of its proper divisors (34067650).

68135294 is a wasteful number, since it uses less digits than its factorization.

68135294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34067649.

The product of its digits is 51840, while the sum is 38.

The square root of 68135294 is about 8254.4105785937. The cubic root of 68135294 is about 408.4360286289.

The spelling of 68135294 in words is "sixty-eight million, one hundred thirty-five thousand, two hundred ninety-four".