12042961 has 16 divisors (see below), whose sum is σ = 14496768. Its totient is φ = 9781200.

The previous prime is 12042931. The next prime is 12042983. The reversal of 12042961 is 16924021.

It is a cyclic number.

It is not a de Polignac number, because 12042961 - 2⁹ = 12042449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12042931) 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 15 ways as a sum of consecutive naturals, for example, 20806 + ... + 21376.

It is an arithmetic number, because the mean of its divisors is an integer number (906048).

Almost surely, 2^12042961 is an apocalyptic number.

It is an amenable number.

12042961 is a deficient number, since it is larger than the sum of its proper divisors (2453807).

12042961 is a wasteful number, since it uses less digits than its factorization.

12042961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 12042961 is about 3470.2969613565. The cubic root of 12042961 is about 229.2157346097.

Adding to 12042961 its reverse (16924021), we get a palindrome (28966982).

The spelling of 12042961 in words is "twelve million, forty-two thousand, nine hundred sixty-one".