12694523 has 2 divisors, whose sum is σ = 12694524. Its totient is φ = 12694522.

The previous prime is 12694511. The next prime is 12694541. The reversal of 12694523 is 32549621.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12694523 - 2¹² = 12690427 is a prime.

It is a super-2 number, since 2×12694523² = 322301828395058, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12694523.

It is not a weakly prime, because it can be changed into another prime (12694573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6347261 + 6347262.

It is an arithmetic number, because the mean of its divisors is an integer number (6347262).

Almost surely, 2^12694523 is an apocalyptic number.

12694523 is a deficient number, since it is larger than the sum of its proper divisors (1).

12694523 is an equidigital number, since it uses as much as digits as its factorization.

12694523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 32.

The square root of 12694523 is about 3562.9374117433. The cubic root of 12694523 is about 233.2771113977.

It can be divided in two parts, 126 and 94523, that added together give a palindrome (94649).

The spelling of 12694523 in words is "twelve million, six hundred ninety-four thousand, five hundred twenty-three".