68075453 has 2 divisors, whose sum is σ = 68075454. Its totient is φ = 68075452.

The previous prime is 68075443. The next prime is 68075507. The reversal of 68075453 is 35457086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54140164 + 13935289 = 7358^2 + 3733^2 .

It is a cyclic number.

It is not a de Polignac number, because 68075453 - 2²² = 63881149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68075443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34037726 + 34037727.

It is an arithmetic number, because the mean of its divisors is an integer number (34037727).

Almost surely, 2^68075453 is an apocalyptic number.

It is an amenable number.

68075453 is a deficient number, since it is larger than the sum of its proper divisors (1).

68075453 is an equidigital number, since it uses as much as digits as its factorization.

68075453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 68075453 is about 8250.7849929567. The cubic root of 68075453 is about 408.3164216051.

The spelling of 68075453 in words is "sixty-eight million, seventy-five thousand, four hundred fifty-three".