68251273 has 8 divisors (see below), whose sum is σ = 70260480. Its totient is φ = 66250800.

The previous prime is 68251223. The next prime is 68251279. The reversal of 68251273 is 37215286.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68251273 is a prime.

It is a super-2 number, since 2×68251273² = 9316472532241058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68251279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15798 + ... + 19648.

It is an arithmetic number, because the mean of its divisors is an integer number (8782560).

Almost surely, 2^68251273 is an apocalyptic number.

It is an amenable number.

68251273 is a deficient number, since it is larger than the sum of its proper divisors (2009207).

68251273 is a wasteful number, since it uses less digits than its factorization.

68251273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4367.

The product of its digits is 20160, while the sum is 34.

The square root of 68251273 is about 8261.4328660348. The cubic root of 68251273 is about 408.6676420715.

The spelling of 68251273 in words is "sixty-eight million, two hundred fifty-one thousand, two hundred seventy-three".