12694105 has 4 divisors (see below), whose sum is σ = 15232932. Its totient is φ = 10155280.

The previous prime is 12694063. The next prime is 12694111. The reversal of 12694105 is 50149621.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5745609 + 6948496 = 2397^2 + 2636^2 .

It is not a de Polignac number, because 12694105 - 2²¹ = 10596953 is a prime.

It is a super-2 number, since 2×12694105² = 322280603502050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1269406 + ... + 1269415.

It is an arithmetic number, because the mean of its divisors is an integer number (3808233).

Almost surely, 2^12694105 is an apocalyptic number.

It is an amenable number.

12694105 is a deficient number, since it is larger than the sum of its proper divisors (2538827).

12694105 is an equidigital number, since it uses as much as digits as its factorization.

12694105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2538826.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 12694105 is about 3562.8787517961. The cubic root of 12694105 is about 233.2745509522.

The spelling of 12694105 in words is "twelve million, six hundred ninety-four thousand, one hundred five".