12287043 has 12 divisors (see below), whose sum is σ = 18083520. Its totient is φ = 8036496.

The previous prime is 12287017. The next prime is 12287057. The reversal of 12287043 is 34078221.

It is not a de Polignac number, because 12287043 - 2¹² = 12282947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12286998 and 12287016.

It is not an unprimeable number, because it can be changed into a prime (12288043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12403 + ... + 13356.

It is an arithmetic number, because the mean of its divisors is an integer number (1506960).

Almost surely, 2^12287043 is an apocalyptic number.

12287043 is a deficient number, since it is larger than the sum of its proper divisors (5796477).

12287043 is a wasteful number, since it uses less digits than its factorization.

12287043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25818 (or 25815 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 12287043 is about 3505.2878626441. The cubic root of 12287043 is about 230.7539404997.

Multiplying 12287043 by its sum of digits (27), we get a triangular number (331750161 = T₂₅₇₅₈).

The spelling of 12287043 in words is "twelve million, two hundred eighty-seven thousand, forty-three".