161144193 has 12 divisors (see below), whose sum is σ = 249938160. Its totient is φ = 92082312.

The previous prime is 161144189. The next prime is 161144197. The reversal of 161144193 is 391441161.

161144193 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (161144189) and next prime (161144197).

It is not a de Polignac number, because 161144193 - 2² = 161144189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 161144193.

It is not an unprimeable number, because it can be changed into a prime (161144197) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 547963 + ... + 548256.

It is an arithmetic number, because the mean of its divisors is an integer number (20828180).

Almost surely, 2^161144193 is an apocalyptic number.

It is an amenable number.

161144193 is a deficient number, since it is larger than the sum of its proper divisors (88793967).

161144193 is a wasteful number, since it uses less digits than its factorization.

161144193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096236 (or 1096229 counting only the distinct ones).

The product of its digits is 2592, while the sum is 30.

The square root of 161144193 is about 12694.2582689971. The cubic root of 161144193 is about 544.1745414282.

The spelling of 161144193 in words is "one hundred sixty-one million, one hundred forty-four thousand, one hundred ninety-three".