163929197 has 2 divisors, whose sum is σ = 163929198. Its totient is φ = 163929196.

The previous prime is 163929179. The next prime is 163929217. The reversal of 163929197 is 791929361.

Together with previous prime (163929179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162970756 + 958441 = 12766^2 + 979^2 .

It is a cyclic number.

It is not a de Polignac number, because 163929197 - 2²⁴ = 147151981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163929167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81964598 + 81964599.

It is an arithmetic number, because the mean of its divisors is an integer number (81964599).

Almost surely, 2^163929197 is an apocalyptic number.

It is an amenable number.

163929197 is a deficient number, since it is larger than the sum of its proper divisors (1).

163929197 is an equidigital number, since it uses as much as digits as its factorization.

163929197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 183708, while the sum is 47.

The square root of 163929197 is about 12803.4837837207. The cubic root of 163929197 is about 547.2915848727.

The spelling of 163929197 in words is "one hundred sixty-three million, nine hundred twenty-nine thousand, one hundred ninety-seven".