12168634 has 24 divisors (see below), whose sum is σ = 19948860. Its totient is φ = 5561856.

The previous prime is 12168577. The next prime is 12168643. The reversal of 12168634 is 43686121.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 9903609 + 2265025 = 3147^2 + 1505^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12168596 and 12168605.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21102 + ... + 21670.

Almost surely, 2^12168634 is an apocalyptic number.

12168634 is a deficient number, since it is larger than the sum of its proper divisors (7780226).

12168634 is a wasteful number, since it uses less digits than its factorization.

12168634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642 (or 625 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 12168634 is about 3488.3569198120. The cubic root of 12168634 is about 230.0102956954.

The spelling of 12168634 in words is "twelve million, one hundred sixty-eight thousand, six hundred thirty-four".