12887141 has 4 divisors (see below), whose sum is σ = 12903552. Its totient is φ = 12870732.

The previous prime is 12887131. The next prime is 12887167. The reversal of 12887141 is 14178821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14178821 = 59 ⋅240319.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12887141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12887098 and 12887107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12887101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6965 + ... + 8618.

It is an arithmetic number, because the mean of its divisors is an integer number (3225888).

Almost surely, 2^12887141 is an apocalyptic number.

It is an amenable number.

12887141 is a deficient number, since it is larger than the sum of its proper divisors (16411).

12887141 is an equidigital number, since it uses as much as digits as its factorization.

12887141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16410.

The product of its digits is 3584, while the sum is 32.

The square root of 12887141 is about 3589.8664320557. The cubic root of 12887141 is about 234.4510561107.

The spelling of 12887141 in words is "twelve million, eight hundred eighty-seven thousand, one hundred forty-one".