168512473 has 2 divisors, whose sum is σ = 168512474. Its totient is φ = 168512472.

The previous prime is 168512471. The next prime is 168512503. The reversal of 168512473 is 374215861.

168512473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 152448409 + 16064064 = 12347^2 + 4008^2 .

It is an emirp because it is prime and its reverse (374215861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 168512473 - 2¹ = 168512471 is a prime.

Together with 168512471, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (168512471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84256236 + 84256237.

It is an arithmetic number, because the mean of its divisors is an integer number (84256237).

Almost surely, 2^168512473 is an apocalyptic number.

It is an amenable number.

168512473 is a deficient number, since it is larger than the sum of its proper divisors (1).

168512473 is an equidigital number, since it uses as much as digits as its factorization.

168512473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 37.

The square root of 168512473 is about 12981.2354188652. The cubic root of 168512473 is about 552.3453269180.

The spelling of 168512473 in words is "one hundred sixty-eight million, five hundred twelve thousand, four hundred seventy-three".