12054442 has 4 divisors (see below), whose sum is σ = 18081666. Its totient is φ = 6027220.

The previous prime is 12054431. The next prime is 12054463. The reversal of 12054442 is 24445021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24445021 = 23 ⋅1062827.

It can be written as a sum of positive squares in only one way, i.e., 6095961 + 5958481 = 2469^2 + 2441^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3013609 + ... + 3013612.

Almost surely, 2^12054442 is an apocalyptic number.

12054442 is a deficient number, since it is larger than the sum of its proper divisors (6027224).

12054442 is an equidigital number, since it uses as much as digits as its factorization.

12054442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6027223.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 12054442 is about 3471.9507484986. The cubic root of 12054442 is about 229.2885514199.

Adding to 12054442 its reverse (24445021), we get a palindrome (36499463).

The spelling of 12054442 in words is "twelve million, fifty-four thousand, four hundred forty-two".