68357138 has 8 divisors (see below), whose sum is σ = 102576240. Its totient is φ = 34165060.

The previous prime is 68357137. The next prime is 68357141. The reversal of 68357138 is 83175386.

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 = 68357095 and 68357104.

It is not an unprimeable number, because it can be changed into a prime (68357131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1673 + ... + 11811.

It is an arithmetic number, because the mean of its divisors is an integer number (12822030).

Almost surely, 2^68357138 is an apocalyptic number.

68357138 is a deficient number, since it is larger than the sum of its proper divisors (34219102).

68357138 is a wasteful number, since it uses less digits than its factorization.

68357138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13512.

The product of its digits is 120960, while the sum is 41.

The square root of 68357138 is about 8267.8375649259. The cubic root of 68357138 is about 408.8788286104.

The spelling of 68357138 in words is "sixty-eight million, three hundred fifty-seven thousand, one hundred thirty-eight".