12045457 has 2 divisors, whose sum is σ = 12045458. Its totient is φ = 12045456.

The previous prime is 12045443. The next prime is 12045463. The reversal of 12045457 is 75454021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7568001 + 4477456 = 2751^2 + 2116^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12045457 is a prime.

It is not a weakly prime, because it can be changed into another prime (12045427) 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, 6022728 + 6022729.

It is an arithmetic number, because the mean of its divisors is an integer number (6022729).

Almost surely, 2^12045457 is an apocalyptic number.

It is an amenable number.

12045457 is a deficient number, since it is larger than the sum of its proper divisors (1).

12045457 is an equidigital number, since it uses as much as digits as its factorization.

12045457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 12045457 is about 3470.6565661269. The cubic root of 12045457 is about 229.2315691140.

Adding to 12045457 its reverse (75454021), we get a palindrome (87499478).

The spelling of 12045457 in words is "twelve million, forty-five thousand, four hundred fifty-seven".