12544545 has 32 divisors (see below), whose sum is σ = 22563072. Its totient is φ = 5905152.

The previous prime is 12544529. The next prime is 12544547. The reversal of 12544545 is 54544521.

It is not a de Polignac number, because 12544545 - 2⁴ = 12544529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12544547) 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 31 ways as a sum of consecutive naturals, for example, 3087 + ... + 5883.

It is an arithmetic number, because the mean of its divisors is an integer number (705096).

Almost surely, 2^12544545 is an apocalyptic number.

12544545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12544545 is a deficient number, since it is larger than the sum of its proper divisors (10018527).

12544545 is a wasteful number, since it uses less digits than its factorization.

12544545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2841.

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

The square root of 12544545 is about 3541.8279178978. The cubic root of 12544545 is about 232.3547942898.

The spelling of 12544545 in words is "twelve million, five hundred forty-four thousand, five hundred forty-five".