12247161 has 8 divisors (see below), whose sum is σ = 16606560. Its totient is φ = 8026272.

The previous prime is 12247141. The next prime is 12247163. The reversal of 12247161 is 16174221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12247161 - 2⁵ = 12247129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12247163) 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 7 ways as a sum of consecutive naturals, for example, 34420 + ... + 34773.

It is an arithmetic number, because the mean of its divisors is an integer number (2075820).

Almost surely, 2^12247161 is an apocalyptic number.

It is an amenable number.

12247161 is a deficient number, since it is larger than the sum of its proper divisors (4359399).

12247161 is an equidigital number, since it uses as much as digits as its factorization.

12247161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69255.

The product of its digits is 672, while the sum is 24.

The square root of 12247161 is about 3499.5944050704. The cubic root of 12247161 is about 230.5040050248.

It can be divided in two parts, 1224 and 7161, that added together give a triangular number (8385 = T₁₂₉).

The spelling of 12247161 in words is "twelve million, two hundred forty-seven thousand, one hundred sixty-one".