12887541 has 12 divisors (see below), whose sum is σ = 19012032. Its totient is φ = 8408616.

The previous prime is 12887519. The next prime is 12887549. The reversal of 12887541 is 14578821.

It is not a de Polignac number, because 12887541 - 2⁵ = 12887509 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12887496 and 12887505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12887549) 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 11 ways as a sum of consecutive naturals, for example, 14811 + ... + 15656.

It is an arithmetic number, because the mean of its divisors is an integer number (1584336).

Almost surely, 2^12887541 is an apocalyptic number.

It is an amenable number.

12887541 is a deficient number, since it is larger than the sum of its proper divisors (6124491).

12887541 is a wasteful number, since it uses less digits than its factorization.

12887541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30520 (or 30517 counting only the distinct ones).

The product of its digits is 17920, while the sum is 36.

The square root of 12887541 is about 3589.9221440026. The cubic root of 12887541 is about 234.4534817703.

The spelling of 12887541 in words is "twelve million, eight hundred eighty-seven thousand, five hundred forty-one".