68354453 has 2 divisors, whose sum is σ = 68354454. Its totient is φ = 68354452.

The previous prime is 68354443. The next prime is 68354527. The reversal of 68354453 is 35445386.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68277169 + 77284 = 8263^2 + 278^2 .

It is a cyclic number.

It is not a de Polignac number, because 68354453 - 2¹² = 68350357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68354443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34177226 + 34177227.

It is an arithmetic number, because the mean of its divisors is an integer number (34177227).

Almost surely, 2^68354453 is an apocalyptic number.

It is an amenable number.

68354453 is a deficient number, since it is larger than the sum of its proper divisors (1).

68354453 is an equidigital number, since it uses as much as digits as its factorization.

68354453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 172800, while the sum is 38.

The square root of 68354453 is about 8267.6751871369. The cubic root of 68354453 is about 408.8734750899.

The spelling of 68354453 in words is "sixty-eight million, three hundred fifty-four thousand, four hundred fifty-three".