163247453 has 2 divisors, whose sum is σ = 163247454. Its totient is φ = 163247452.

The previous prime is 163247431. The next prime is 163247477. The reversal of 163247453 is 354742361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112296409 + 50951044 = 10597^2 + 7138^2 .

It is an emirp because it is prime and its reverse (354742361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 163247453 - 2¹⁸ = 162985309 is a prime.

It is a Sophie Germain 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 (163247423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81623726 + 81623727.

It is an arithmetic number, because the mean of its divisors is an integer number (81623727).

Almost surely, 2^163247453 is an apocalyptic number.

It is an amenable number.

163247453 is a deficient number, since it is larger than the sum of its proper divisors (1).

163247453 is an equidigital number, since it uses as much as digits as its factorization.

163247453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 35.

The square root of 163247453 is about 12776.8326669797. The cubic root of 163247453 is about 546.5318439000.

The spelling of 163247453 in words is "one hundred sixty-three million, two hundred forty-seven thousand, four hundred fifty-three".