68154673 has 2 divisors, whose sum is σ = 68154674. Its totient is φ = 68154672.

The previous prime is 68154659. The next prime is 68154689. The reversal of 68154673 is 37645186.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34433424 + 33721249 = 5868^2 + 5807^2 .

It is a cyclic number.

It is not a de Polignac number, because 68154673 - 2⁵ = 68154641 is a prime.

It is not a weakly prime, because it can be changed into another prime (68154973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34077336 + 34077337.

It is an arithmetic number, because the mean of its divisors is an integer number (34077337).

Almost surely, 2^68154673 is an apocalyptic number.

It is an amenable number.

68154673 is a deficient number, since it is larger than the sum of its proper divisors (1).

68154673 is an equidigital number, since it uses as much as digits as its factorization.

68154673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 40.

The square root of 68154673 is about 8255.5843524247. The cubic root of 68154673 is about 408.4747473362.

The spelling of 68154673 in words is "sixty-eight million, one hundred fifty-four thousand, six hundred seventy-three".