12969136 has 10 divisors (see below), whose sum is σ = 25127732. Its totient is φ = 6484560.

The previous prime is 12969127. The next prime is 12969137. The reversal of 12969136 is 63196921.

It is a junction number, because it is equal to n+sod(n) for n = 12969095 and 12969104.

It is not an unprimeable number, because it can be changed into a prime (12969137) by changing a digit.

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 as a sum of consecutive naturals, namely, 405270 + ... + 405301.

Almost surely, 2^12969136 is an apocalyptic number.

12969136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12969136 is a deficient number, since it is larger than the sum of its proper divisors (12158596).

12969136 is an equidigital number, since it uses as much as digits as its factorization.

12969136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810579 (or 810573 counting only the distinct ones).

The product of its digits is 17496, while the sum is 37.

The square root of 12969136 is about 3601.2686653456. The cubic root of 12969136 is about 234.9472403061.

The spelling of 12969136 in words is "twelve million, nine hundred sixty-nine thousand, one hundred thirty-six".