163597 has 4 divisors (see below), whose sum is σ = 186976. Its totient is φ = 140220.

The previous prime is 163573. The next prime is 163601. The reversal of 163597 is 795361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 795361 = 7 ⋅113623.

It is a cyclic number.

It is not a de Polignac number, because 163597 - 2⁷ = 163469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163517) 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 in 3 ways as a sum of consecutive naturals, for example, 11679 + ... + 11692.

It is an arithmetic number, because the mean of its divisors is an integer number (46744).

2¹⁶³⁵⁹⁷ is an apocalyptic number.

It is an amenable number.

163597 is a deficient number, since it is larger than the sum of its proper divisors (23379).

163597 is an equidigital number, since it uses as much as digits as its factorization.

163597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23378.

The product of its digits is 5670, while the sum is 31.

The square root of 163597 is about 404.4712597948. The cubic root of 163597 is about 54.6921645545.

The spelling of 163597 in words is "one hundred sixty-three thousand, five hundred ninety-seven".