12943071 has 10 divisors (see below), whose sum is σ = 19334832. Its totient is φ = 8628660.

The previous prime is 12943067. The next prime is 12943079. The reversal of 12943071 is 17034921.

It is not a de Polignac number, because 12943071 - 2² = 12943067 is a prime.

It is a super-2 number, since 2×12943071² = 335046173822082, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12943079) 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 9 ways as a sum of consecutive naturals, for example, 79815 + ... + 79976.

Almost surely, 2^12943071 is an apocalyptic number.

12943071 is a deficient number, since it is larger than the sum of its proper divisors (6391761).

12943071 is an equidigital number, since it uses as much as digits as its factorization.

12943071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159803 (or 159794 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 12943071 is about 3597.6479816680. The cubic root of 12943071 is about 234.7897379880.

Adding to 12943071 its reverse (17034921), we get a palindrome (29977992).

The spelling of 12943071 in words is "twelve million, nine hundred forty-three thousand, seventy-one".