68137583 has 2 divisors, whose sum is σ = 68137584. Its totient is φ = 68137582.

The previous prime is 68137577. The next prime is 68137621. The reversal of 68137583 is 38573186.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68137583 - 2¹⁰ = 68136559 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68137583.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68137483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34068791 + 34068792.

It is an arithmetic number, because the mean of its divisors is an integer number (34068792).

Almost surely, 2^68137583 is an apocalyptic number.

68137583 is a deficient number, since it is larger than the sum of its proper divisors (1).

68137583 is an equidigital number, since it uses as much as digits as its factorization.

68137583 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 41.

The square root of 68137583 is about 8254.5492305758. The cubic root of 68137583 is about 408.4406023701.

The spelling of 68137583 in words is "sixty-eight million, one hundred thirty-seven thousand, five hundred eighty-three".