163255597 has 2 divisors, whose sum is σ = 163255598. Its totient is φ = 163255596.

The previous prime is 163255591. The next prime is 163255621. The reversal of 163255597 is 795552361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139499721 + 23755876 = 11811^2 + 4874^2 .

It is an emirp because it is prime and its reverse (795552361) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163255597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163255591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81627798 + 81627799.

It is an arithmetic number, because the mean of its divisors is an integer number (81627799).

Almost surely, 2^163255597 is an apocalyptic number.

It is an amenable number.

163255597 is a deficient number, since it is larger than the sum of its proper divisors (1).

163255597 is an equidigital number, since it uses as much as digits as its factorization.

163255597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 283500, while the sum is 43.

The square root of 163255597 is about 12777.1513648387. The cubic root of 163255597 is about 546.5409321098.

The spelling of 163255597 in words is "one hundred sixty-three million, two hundred fifty-five thousand, five hundred ninety-seven".