163744197 has 8 divisors (see below), whose sum is σ = 218644320. Its totient is φ = 109003440.

The previous prime is 163744171. The next prime is 163744211. The reversal of 163744197 is 791447361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 163744197 - 2¹⁴ = 163727813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163744127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37422 + ... + 41567.

It is an arithmetic number, because the mean of its divisors is an integer number (27330540).

Almost surely, 2^163744197 is an apocalyptic number.

It is an amenable number.

163744197 is a deficient number, since it is larger than the sum of its proper divisors (54900123).

163744197 is an equidigital number, since it uses as much as digits as its factorization.

163744197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79683.

The product of its digits is 127008, while the sum is 42.

The square root of 163744197 is about 12796.2571480883. The cubic root of 163744197 is about 547.0856279583.

The spelling of 163744197 in words is "one hundred sixty-three million, seven hundred forty-four thousand, one hundred ninety-seven".