12547005 has 16 divisors (see below), whose sum is σ = 20191680. Its totient is φ = 6652928.

The previous prime is 12546991. The next prime is 12547009. The reversal of 12547005 is 50074521.

It is a cyclic number.

It is not a de Polignac number, because 12547005 - 2⁸ = 12546749 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12547009) 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, 349 + ... + 5021.

It is an arithmetic number, because the mean of its divisors is an integer number (1261980).

Almost surely, 2^12547005 is an apocalyptic number.

12547005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12547005 is a deficient number, since it is larger than the sum of its proper divisors (7644675).

12547005 is a wasteful number, since it uses less digits than its factorization.

12547005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4860.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 12547005 is about 3542.1751791802. The cubic root of 12547005 is about 232.3699816464.

The spelling of 12547005 in words is "twelve million, five hundred forty-seven thousand, five".