163104257 has 2 divisors, whose sum is σ = 163104258. Its totient is φ = 163104256.

The previous prime is 163104233. The next prime is 163104283. The reversal of 163104257 is 752401361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104060401 + 59043856 = 10201^2 + 7684^2 .

It is an emirp because it is prime and its reverse (752401361) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163104257 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (163104217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81552128 + 81552129.

It is an arithmetic number, because the mean of its divisors is an integer number (81552129).

Almost surely, 2^163104257 is an apocalyptic number.

It is an amenable number.

163104257 is a deficient number, since it is larger than the sum of its proper divisors (1).

163104257 is an equidigital number, since it uses as much as digits as its factorization.

163104257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 163104257 is about 12771.2277013606. The cubic root of 163104257 is about 546.3719964487.

It can be divided in two parts, 163104 and 257, that added together give a palindrome (163361).

The spelling of 163104257 in words is "one hundred sixty-three million, one hundred four thousand, two hundred fifty-seven".