163106257 has 2 divisors, whose sum is σ = 163106258. Its totient is φ = 163106256.

The previous prime is 163106239. The next prime is 163106297. The reversal of 163106257 is 752601361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92948881 + 70157376 = 9641^2 + 8376^2 .

It is a cyclic number.

It is not a de Polignac number, because 163106257 - 2¹¹ = 163104209 is a prime.

It is not a weakly prime, because it can be changed into another prime (163106297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81553128 + 81553129.

It is an arithmetic number, because the mean of its divisors is an integer number (81553129).

Almost surely, 2^163106257 is an apocalyptic number.

It is an amenable number.

163106257 is a deficient number, since it is larger than the sum of its proper divisors (1).

163106257 is an equidigital number, since it uses as much as digits as its factorization.

163106257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 163106257 is about 12771.3060021284. The cubic root of 163106257 is about 546.3742296614.

The spelling of 163106257 in words is "one hundred sixty-three million, one hundred six thousand, two hundred fifty-seven".