12919564 has 12 divisors (see below), whose sum is σ = 25839184. Its totient is φ = 5536944.

The previous prime is 12919561. The next prime is 12919567. The reversal of 12919564 is 46591921.

It is an interprime number because it is at equal distance from previous prime (12919561) and next prime (12919567).

12919564 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (12919561) 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, 230679 + ... + 230734.

Almost surely, 2^12919564 is an apocalyptic number.

12919564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12919564 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12919564 is a wasteful number, since it uses less digits than its factorization.

12919564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461424 (or 461422 counting only the distinct ones).

The product of its digits is 19440, while the sum is 37.

The square root of 12919564 is about 3594.3795013882. The cubic root of 12919564 is about 234.6475113855.

The spelling of 12919564 in words is "twelve million, nine hundred nineteen thousand, five hundred sixty-four".