68134138 has 8 divisors (see below), whose sum is σ = 102240288. Its totient is φ = 34054044.

The previous prime is 68134127. The next prime is 68134139. The reversal of 68134138 is 83143186.

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

It is a super-2 number, since 2×68134138² = 9284521522006088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68134139) 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, 2545 + ... + 11947.

It is an arithmetic number, because the mean of its divisors is an integer number (12780036).

Almost surely, 2^68134138 is an apocalyptic number.

68134138 is a deficient number, since it is larger than the sum of its proper divisors (34106150).

68134138 is a wasteful number, since it uses less digits than its factorization.

68134138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13028.

The product of its digits is 13824, while the sum is 34.

The square root of 68134138 is about 8254.3405551261. The cubic root of 68134138 is about 408.4337187408.

The spelling of 68134138 in words is "sixty-eight million, one hundred thirty-four thousand, one hundred thirty-eight".