68005231 has 8 divisors (see below), whose sum is σ = 79528064. Its totient is φ = 56934360.

The previous prime is 68005213. The next prime is 68005279. The reversal of 68005231 is 13250086.

It is a happy number.

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

It is not a de Polignac number, because 68005231 - 2⁹ = 68004719 is a prime.

It is a super-2 number, since 2×68005231² = 9249422886726722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68005196 and 68005205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68005331) 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, 112665 + ... + 113266.

It is an arithmetic number, because the mean of its divisors is an integer number (9941008).

Almost surely, 2^68005231 is an apocalyptic number.

68005231 is a deficient number, since it is larger than the sum of its proper divisors (11522833).

68005231 is a wasteful number, since it uses less digits than its factorization.

68005231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225981.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 68005231 is about 8246.5284210994. The cubic root of 68005231 is about 408.1759761674.

The spelling of 68005231 in words is "sixty-eight million, five thousand, two hundred thirty-one".