12097161 has 32 divisors (see below), whose sum is σ = 18816000. Its totient is φ = 7672320.

The previous prime is 12097159. The next prime is 12097171. The reversal of 12097161 is 16179021.

12097161 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12097161 - 2¹ = 12097159 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12097121) 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 31 ways as a sum of consecutive naturals, for example, 81115 + ... + 81263.

It is an arithmetic number, because the mean of its divisors is an integer number (588000).

Almost surely, 2^12097161 is an apocalyptic number.

It is an amenable number.

12097161 is a deficient number, since it is larger than the sum of its proper divisors (6718839).

12097161 is a wasteful number, since it uses less digits than its factorization.

12097161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 280 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 12097161 is about 3478.0973246877. The cubic root of 12097161 is about 229.5590859871.

The spelling of 12097161 in words is "twelve million, ninety-seven thousand, one hundred sixty-one".