163325857 has 2 divisors, whose sum is σ = 163325858. Its totient is φ = 163325856.

The previous prime is 163325849. The next prime is 163325863. The reversal of 163325857 is 758523361.

163325857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86044176 + 77281681 = 9276^2 + 8791^2 .

It is an emirp because it is prime and its reverse (758523361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 163325857 - 2³ = 163325849 is a prime.

It is not a weakly prime, because it can be changed into another prime (163625857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81662928 + 81662929.

It is an arithmetic number, because the mean of its divisors is an integer number (81662929).

Almost surely, 2^163325857 is an apocalyptic number.

It is an amenable number.

163325857 is a deficient number, since it is larger than the sum of its proper divisors (1).

163325857 is an equidigital number, since it uses as much as digits as its factorization.

163325857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151200, while the sum is 40.

The square root of 163325857 is about 12779.9005082199. The cubic root of 163325857 is about 546.6193254579.

The spelling of 163325857 in words is "one hundred sixty-three million, three hundred twenty-five thousand, eight hundred fifty-seven".