12454545 has 16 divisors (see below), whose sum is σ = 19975680. Its totient is φ = 6626304.

The previous prime is 12454531. The next prime is 12454573. The reversal of 12454545 is 54545421.

It is not a de Polignac number, because 12454545 - 2⁵ = 12454513 is a prime.

12454545 is a modest number, since divided by 4545 gives 1245 as remainder.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7936 + ... + 9374.

It is an arithmetic number, because the mean of its divisors is an integer number (1248480).

Almost surely, 2^12454545 is an apocalyptic number.

12454545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12454545 is a deficient number, since it is larger than the sum of its proper divisors (7521135).

12454545 is a wasteful number, since it uses less digits than its factorization.

12454545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2024.

The product of its digits is 16000, while the sum is 30.

The square root of 12454545 is about 3529.0997435607. The cubic root of 12454545 is about 231.7977887761.

Adding to 12454545 its reverse (54545421), we get a palindrome (66999966).

The spelling of 12454545 in words is "twelve million, four hundred fifty-four thousand, five hundred forty-five".