68012239 has 8 divisors (see below), whose sum is σ = 69110912. Its totient is φ = 66922200.

The previous prime is 68012237. The next prime is 68012251. The reversal of 68012239 is 93221086.

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

It is a cyclic number.

It is not a de Polignac number, because 68012239 - 2¹ = 68012237 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68012239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68012237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14764 + ... + 18814.

It is an arithmetic number, because the mean of its divisors is an integer number (8638864).

Almost surely, 2^68012239 is an apocalyptic number.

68012239 is a deficient number, since it is larger than the sum of its proper divisors (1098673).

68012239 is a wasteful number, since it uses less digits than its factorization.

68012239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4317.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 68012239 is about 8246.9533162253. The cubic root of 68012239 is about 408.1899966525.

The spelling of 68012239 in words is "sixty-eight million, twelve thousand, two hundred thirty-nine".