12731974 has 4 divisors (see below), whose sum is σ = 19097964. Its totient is φ = 6365986.

The previous prime is 12731969. The next prime is 12731987. The reversal of 12731974 is 47913721.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3182992 + ... + 3182995.

It is an arithmetic number, because the mean of its divisors is an integer number (4774491).

Almost surely, 2^12731974 is an apocalyptic number.

12731974 is a deficient number, since it is larger than the sum of its proper divisors (6365990).

12731974 is an equidigital number, since it uses as much as digits as its factorization.

12731974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6365989.

The product of its digits is 10584, while the sum is 34.

The square root of 12731974 is about 3568.1891765992. The cubic root of 12731974 is about 233.5062885476.

The spelling of 12731974 in words is "twelve million, seven hundred thirty-one thousand, nine hundred seventy-four".