68755138 has 8 divisors (see below), whose sum is σ = 103243788. Its totient is φ = 34340544.

The previous prime is 68755111. The next prime is 68755163. The reversal of 68755138 is 83155786.

It can be written as a sum of positive squares in 2 ways, for example, as 65820769 + 2934369 = 8113^2 + 1713^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 68755094 and 68755103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16131 + ... + 19942.

Almost surely, 2^68755138 is an apocalyptic number.

68755138 is a deficient number, since it is larger than the sum of its proper divisors (34488650).

68755138 is a wasteful number, since it uses less digits than its factorization.

68755138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37028.

The product of its digits is 201600, while the sum is 43.

The square root of 68755138 is about 8291.8718031576. The cubic root of 68755138 is about 409.6708403132.

The spelling of 68755138 in words is "sixty-eight million, seven hundred fifty-five thousand, one hundred thirty-eight".