12043961 has 6 divisors (see below), whose sum is σ = 12474462. Its totient is φ = 11627840.

The previous prime is 12043951. The next prime is 12043979. The reversal of 12043961 is 16934021.

It can be written as a sum of positive squares in 3 ways, for example, as 72361 + 11971600 = 269^2 + 3460^2 .

It is not a de Polignac number, because 12043961 - 2²² = 7849657 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12043961.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12043931) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6320 + ... + 8001.

It is an arithmetic number, because the mean of its divisors is an integer number (2079077).

Almost surely, 2^12043961 is an apocalyptic number.

It is an amenable number.

12043961 is a deficient number, since it is larger than the sum of its proper divisors (430501).

12043961 is an equidigital number, since it uses as much as digits as its factorization.

12043961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14379 (or 14350 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 12043961 is about 3470.4410382544. The cubic root of 12043961 is about 229.2220788244. Note that the first 3 decimals are identical.

Adding to 12043961 its reverse (16934021), we get a palindrome (28977982).

The spelling of 12043961 in words is "twelve million, forty-three thousand, nine hundred sixty-one".