12528645 has 16 divisors (see below), whose sum is σ = 20155392. Its totient is φ = 6645440.

The previous prime is 12528641. The next prime is 12528653. The reversal of 12528645 is 54682521.

12528645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12528645 - 2² = 12528641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12528641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 679 + ... + 5051.

It is an arithmetic number, because the mean of its divisors is an integer number (1259712).

Almost surely, 2^12528645 is an apocalyptic number.

12528645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12528645 is a deficient number, since it is larger than the sum of its proper divisors (7626747).

12528645 is a wasteful number, since it uses less digits than its factorization.

12528645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4572.

The product of its digits is 19200, while the sum is 33.

The square root of 12528645 is about 3539.5826025112. The cubic root of 12528645 is about 232.2565841857.

The spelling of 12528645 in words is "twelve million, five hundred twenty-eight thousand, six hundred forty-five".