68365237 has 2 divisors, whose sum is σ = 68365238. Its totient is φ = 68365236.

The previous prime is 68365217. The next prime is 68365273. The reversal of 68365237 is 73256386.

Together with next prime (68365273) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34562641 + 33802596 = 5879^2 + 5814^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68365237 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68365237.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68365217) 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 as a sum of consecutive naturals, namely, 34182618 + 34182619.

It is an arithmetic number, because the mean of its divisors is an integer number (34182619).

Almost surely, 2^68365237 is an apocalyptic number.

It is an amenable number.

68365237 is a deficient number, since it is larger than the sum of its proper divisors (1).

68365237 is an equidigital number, since it uses as much as digits as its factorization.

68365237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 40.

The square root of 68365237 is about 8268.3273399159. The cubic root of 68365237 is about 408.8949760529.

The spelling of 68365237 in words is "sixty-eight million, three hundred sixty-five thousand, two hundred thirty-seven".