68241533 has 2 divisors, whose sum is σ = 68241534. Its totient is φ = 68241532.

The previous prime is 68241499. The next prime is 68241599. The reversal of 68241533 is 33514286.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56145049 + 12096484 = 7493^2 + 3478^2 .

It is a cyclic number.

It is not a de Polignac number, because 68241533 - 2¹² = 68237437 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 68241533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68246533) 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 as a sum of consecutive naturals, namely, 34120766 + 34120767.

It is an arithmetic number, because the mean of its divisors is an integer number (34120767).

Almost surely, 2^68241533 is an apocalyptic number.

It is an amenable number.

68241533 is a deficient number, since it is larger than the sum of its proper divisors (1).

68241533 is an equidigital number, since it uses as much as digits as its factorization.

68241533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 32.

The square root of 68241533 is about 8260.8433588829. The cubic root of 68241533 is about 408.6482011047.

The spelling of 68241533 in words is "sixty-eight million, two hundred forty-one thousand, five hundred thirty-three".