68712133 has 8 divisors (see below), whose sum is σ = 78637952. Its totient is φ = 58813776.

The previous prime is 68712121. The next prime is 68712143. The reversal of 68712133 is 33121786.

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

It is not a de Polignac number, because 68712133 - 2⁵ = 68712101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68712095 and 68712104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68712103) 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, 1185 + ... + 11782.

It is an arithmetic number, because the mean of its divisors is an integer number (9829744).

Almost surely, 2^68712133 is an apocalyptic number.

It is an amenable number.

68712133 is a deficient number, since it is larger than the sum of its proper divisors (9925819).

68712133 is a wasteful number, since it uses less digits than its factorization.

68712133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13731.

The product of its digits is 6048, while the sum is 31.

The square root of 68712133 is about 8289.2781953557. The cubic root of 68712133 is about 409.5854087877.

The spelling of 68712133 in words is "sixty-eight million, seven hundred twelve thousand, one hundred thirty-three".