163273697 has 2 divisors, whose sum is σ = 163273698. Its totient is φ = 163273696.

The previous prime is 163273681. The next prime is 163273739. The reversal of 163273697 is 796372361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 155650576 + 7623121 = 12476^2 + 2761^2 .

It is a cyclic number.

It is not a de Polignac number, because 163273697 - 2⁴ = 163273681 is a prime.

It is not a weakly prime, because it can be changed into another prime (163273657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81636848 + 81636849.

It is an arithmetic number, because the mean of its divisors is an integer number (81636849).

Almost surely, 2^163273697 is an apocalyptic number.

It is an amenable number.

163273697 is a deficient number, since it is larger than the sum of its proper divisors (1).

163273697 is an equidigital number, since it uses as much as digits as its factorization.

163273697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 285768, while the sum is 44.

The square root of 163273697 is about 12777.8596408006. The cubic root of 163273697 is about 546.5611295293.

The spelling of 163273697 in words is "one hundred sixty-three million, two hundred seventy-three thousand, six hundred ninety-seven".