12740674 has 4 divisors (see below), whose sum is σ = 19111014. Its totient is φ = 6370336.

The previous prime is 12740671. The next prime is 12740677. The reversal of 12740674 is 47604721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47604721 = 439 ⋅108439.

It is an interprime number because it is at equal distance from previous prime (12740671) and next prime (12740677).

It can be written as a sum of positive squares in only one way, i.e., 12006225 + 734449 = 3465^2 + 857^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (12740671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3185167 + ... + 3185170.

Almost surely, 2^12740674 is an apocalyptic number.

12740674 is a deficient number, since it is larger than the sum of its proper divisors (6370340).

12740674 is an equidigital number, since it uses as much as digits as its factorization.

12740674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6370339.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 12740674 is about 3569.4080741770. The cubic root of 12740674 is about 233.5594628672.

The spelling of 12740674 in words is "twelve million, seven hundred forty thousand, six hundred seventy-four".