12729194 has 8 divisors (see below), whose sum is σ = 19177860. Its totient is φ = 6336576.

The previous prime is 12729193. The next prime is 12729217. The reversal of 12729194 is 49192721.

12729194 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12694969 + 34225 = 3563^2 + 185^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12729193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13439 + ... + 14354.

Almost surely, 2^12729194 is an apocalyptic number.

12729194 is a deficient number, since it is larger than the sum of its proper divisors (6448666).

12729194 is a wasteful number, since it uses less digits than its factorization.

12729194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28024.

The product of its digits is 9072, while the sum is 35.

The square root of 12729194 is about 3567.7996019956. The cubic root of 12729194 is about 233.4892921066.

The spelling of 12729194 in words is "twelve million, seven hundred twenty-nine thousand, one hundred ninety-four".