163230257 has 2 divisors, whose sum is σ = 163230258. Its totient is φ = 163230256.

The previous prime is 163230251. The next prime is 163230259. The reversal of 163230257 is 752032361.

163230257 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., 98089216 + 65141041 = 9904^2 + 8071^2 .

It is a cyclic number.

It is not a de Polignac number, because 163230257 - 2¹⁶ = 163164721 is a prime.

Together with 163230259, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (163230251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81615128 + 81615129.

It is an arithmetic number, because the mean of its divisors is an integer number (81615129).

Almost surely, 2^163230257 is an apocalyptic number.

It is an amenable number.

163230257 is a deficient number, since it is larger than the sum of its proper divisors (1).

163230257 is an equidigital number, since it uses as much as digits as its factorization.

163230257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 163230257 is about 12776.1597125271. The cubic root of 163230257 is about 546.5126532145.

The spelling of 163230257 in words is "one hundred sixty-three million, two hundred thirty thousand, two hundred fifty-seven".