12541161 has 4 divisors (see below), whose sum is σ = 16721552. Its totient is φ = 8360772.

The previous prime is 12541157. The next prime is 12541163. The reversal of 12541161 is 16114521.

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 12541161 - 2² = 12541157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12541163) 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, 2090191 + ... + 2090196.

It is an arithmetic number, because the mean of its divisors is an integer number (4180388).

Almost surely, 2^12541161 is an apocalyptic number.

It is an amenable number.

12541161 is a deficient number, since it is larger than the sum of its proper divisors (4180391).

12541161 is an equidigital number, since it uses as much as digits as its factorization.

12541161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4180390.

The product of its digits is 240, while the sum is 21.

The square root of 12541161 is about 3541.3501662502. The cubic root of 12541161 is about 232.3338991693. Note that the first 3 decimals are identical.

Adding to 12541161 its reverse (16114521), we get a palindrome (28655682).

It can be divided in two parts, 1254 and 1161, that added together give a triangular number (2415 = T₆₉).

The spelling of 12541161 in words is "twelve million, five hundred forty-one thousand, one hundred sixty-one".