12054661 has 2 divisors, whose sum is σ = 12054662. Its totient is φ = 12054660.

The previous prime is 12054659. The next prime is 12054667. The reversal of 12054661 is 16645021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8014561 + 4040100 = 2831^2 + 2010^2 .

It is a cyclic number.

It is not a de Polignac number, because 12054661 - 2¹ = 12054659 is a prime.

Together with 12054659, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12054667) 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 as a sum of consecutive naturals, namely, 6027330 + 6027331.

It is an arithmetic number, because the mean of its divisors is an integer number (6027331).

Almost surely, 2^12054661 is an apocalyptic number.

It is an amenable number.

12054661 is a deficient number, since it is larger than the sum of its proper divisors (1).

12054661 is an equidigital number, since it uses as much as digits as its factorization.

12054661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 12054661 is about 3471.9822868212. The cubic root of 12054661 is about 229.2899399506.

Adding to 12054661 its reverse (16645021), we get a palindrome (28699682).

The spelling of 12054661 in words is "twelve million, fifty-four thousand, six hundred sixty-one".