12981343 has 8 divisors (see below), whose sum is σ = 13654656. Its totient is φ = 12324000.

The previous prime is 12981341. The next prime is 12981377. The reversal of 12981343 is 34318921.

12981343 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12981343 - 2¹ = 12981341 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12981341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2308 + ... + 5593.

It is an arithmetic number, because the mean of its divisors is an integer number (1706832).

Almost surely, 2^12981343 is an apocalyptic number.

12981343 is a deficient number, since it is larger than the sum of its proper divisors (673313).

12981343 is an equidigital number, since it uses as much as digits as its factorization.

12981343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7985.

The product of its digits is 5184, while the sum is 31.

The square root of 12981343 is about 3602.9630861279. The cubic root of 12981343 is about 235.0209306844.

The spelling of 12981343 in words is "twelve million, nine hundred eighty-one thousand, three hundred forty-three".