12540827 has 4 divisors (see below), whose sum is σ = 13505520. Its totient is φ = 11576136.

The previous prime is 12540811. The next prime is 12540877. The reversal of 12540827 is 72804521.

12540827 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12540827 - 2⁴ = 12540811 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12540827.

It is not an unprimeable number, because it can be changed into a prime (12540877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 482327 + ... + 482352.

It is an arithmetic number, because the mean of its divisors is an integer number (3376380).

Almost surely, 2^12540827 is an apocalyptic number.

12540827 is a deficient number, since it is larger than the sum of its proper divisors (964693).

12540827 is an equidigital number, since it uses as much as digits as its factorization.

12540827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964692.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 12540827 is about 3541.3030087808. The cubic root of 12540827 is about 232.3318366221.

The spelling of 12540827 in words is "twelve million, five hundred forty thousand, eight hundred twenty-seven".