12731842 has 8 divisors (see below), whose sum is σ = 19116432. Its totient is φ = 6359700.

The previous prime is 12731837. The next prime is 12731863. The reversal of 12731842 is 24813721.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12731842.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117 + ... + 5047.

It is an arithmetic number, because the mean of its divisors is an integer number (2389554).

Almost surely, 2^12731842 is an apocalyptic number.

12731842 is a deficient number, since it is larger than the sum of its proper divisors (6384590).

12731842 is a wasteful number, since it uses less digits than its factorization.

12731842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6224.

The product of its digits is 2688, while the sum is 28.

The square root of 12731842 is about 3568.1706797742. The cubic root of 12731842 is about 233.5054815783.

The spelling of 12731842 in words is "twelve million, seven hundred thirty-one thousand, eight hundred forty-two".