68865541 has 2 divisors, whose sum is σ = 68865542. Its totient is φ = 68865540.

The previous prime is 68865529. The next prime is 68865553. The reversal of 68865541 is 14556886.

It is a balanced prime because it is at equal distance from previous prime (68865529) and next prime (68865553).

It can be written as a sum of positive squares in only one way, i.e., 42640900 + 26224641 = 6530^2 + 5121^2 .

It is a cyclic number.

It is not a de Polignac number, because 68865541 - 2⁷ = 68865413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68865571) 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, 34432770 + 34432771.

It is an arithmetic number, because the mean of its divisors is an integer number (34432771).

Almost surely, 2^68865541 is an apocalyptic number.

It is an amenable number.

68865541 is a deficient number, since it is larger than the sum of its proper divisors (1).

68865541 is an equidigital number, since it uses as much as digits as its factorization.

68865541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 230400, while the sum is 43.

The square root of 68865541 is about 8298.5264354583. The cubic root of 68865541 is about 409.8899982508.

The spelling of 68865541 in words is "sixty-eight million, eight hundred sixty-five thousand, five hundred forty-one".