12235161 has 4 divisors (see below), whose sum is σ = 16313552. Its totient is φ = 8156772.

The previous prime is 12235159. The next prime is 12235169. The reversal of 12235161 is 16153221.

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 12235161 - 2¹ = 12235159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12235169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2039191 + ... + 2039196.

It is an arithmetic number, because the mean of its divisors is an integer number (4078388).

Almost surely, 2^12235161 is an apocalyptic number.

It is an amenable number.

12235161 is a deficient number, since it is larger than the sum of its proper divisors (4078391).

12235161 is an equidigital number, since it uses as much as digits as its factorization.

12235161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4078390.

The product of its digits is 360, while the sum is 21.

The square root of 12235161 is about 3497.8795004974. The cubic root of 12235161 is about 230.4286963618.

Adding to 12235161 its reverse (16153221), we get a palindrome (28388382).

The spelling of 12235161 in words is "twelve million, two hundred thirty-five thousand, one hundred sixty-one".