163073453 has 2 divisors, whose sum is σ = 163073454. Its totient is φ = 163073452.

The previous prime is 163073431. The next prime is 163073479. The reversal of 163073453 is 354370361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136002244 + 27071209 = 11662^2 + 5203^2 .

It is a cyclic number.

It is not a de Polignac number, because 163073453 - 2⁶ = 163073389 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163073153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81536726 + 81536727.

It is an arithmetic number, because the mean of its divisors is an integer number (81536727).

Almost surely, 2^163073453 is an apocalyptic number.

It is an amenable number.

163073453 is a deficient number, since it is larger than the sum of its proper divisors (1).

163073453 is an equidigital number, since it uses as much as digits as its factorization.

163073453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 32.

The square root of 163073453 is about 12770.0216522917. The cubic root of 163073453 is about 546.3375981995.

The spelling of 163073453 in words is "one hundred sixty-three million, seventy-three thousand, four hundred fifty-three".