161193 has 4 divisors (see below), whose sum is σ = 214928. Its totient is φ = 107460.

The previous prime is 161167. The next prime is 161201. The reversal of 161193 is 391161.

It is a happy number.

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.

It is not a de Polignac number, because 161193 - 2⁹ = 160681 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26863 + ... + 26868.

It is an arithmetic number, because the mean of its divisors is an integer number (53732).

2¹⁶¹¹⁹³ is an apocalyptic number.

It is an amenable number.

161193 is a deficient number, since it is larger than the sum of its proper divisors (53735).

161193 is an equidigital number, since it uses as much as digits as its factorization.

161193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53734.

The product of its digits is 162, while the sum is 21.

The square root of 161193 is about 401.4884805321. The cubic root of 161193 is about 54.4229475347.

The spelling of 161193 in words is "one hundred sixty-one thousand, one hundred ninety-three".