12731293 has 8 divisors (see below), whose sum is σ = 13142528. Its totient is φ = 12323664.

The previous prime is 12731281. The next prime is 12731339. The reversal of 12731293 is 39213721.

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

It is not a de Polignac number, because 12731293 - 2¹³ = 12723101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12731093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7480 + ... + 9022.

It is an arithmetic number, because the mean of its divisors is an integer number (1642816).

Almost surely, 2^12731293 is an apocalyptic number.

It is an amenable number.

12731293 is a deficient number, since it is larger than the sum of its proper divisors (411235).

12731293 is a wasteful number, since it uses less digits than its factorization.

12731293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1803.

The product of its digits is 2268, while the sum is 28.

The square root of 12731293 is about 3568.0937487684. The cubic root of 12731293 is about 233.5021252598.

The spelling of 12731293 in words is "twelve million, seven hundred thirty-one thousand, two hundred ninety-three".