168112453 has 2 divisors, whose sum is σ = 168112454. Its totient is φ = 168112452.

The previous prime is 168112403. The next prime is 168112487. The reversal of 168112453 is 354211861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141300769 + 26811684 = 11887^2 + 5178^2 .

It is an emirp because it is prime and its reverse (354211861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 168112453 - 2⁹ = 168111941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168112403) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84056226 + 84056227.

It is an arithmetic number, because the mean of its divisors is an integer number (84056227).

Almost surely, 2^168112453 is an apocalyptic number.

It is an amenable number.

168112453 is a deficient number, since it is larger than the sum of its proper divisors (1).

168112453 is an equidigital number, since it uses as much as digits as its factorization.

168112453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 31.

The square root of 168112453 is about 12965.8186397929. The cubic root of 168112453 is about 551.9079226187.

The spelling of 168112453 in words is "one hundred sixty-eight million, one hundred twelve thousand, four hundred fifty-three".