12919454 has 16 divisors (see below), whose sum is σ = 19934208. Its totient is φ = 6276792.

The previous prime is 12919451. The next prime is 12919463. The reversal of 12919454 is 45491921.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12919451) 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 in 7 ways as a sum of consecutive naturals, for example, 15287 + ... + 16109.

It is an arithmetic number, because the mean of its divisors is an integer number (1245888).

Almost surely, 2^12919454 is an apocalyptic number.

12919454 is a deficient number, since it is larger than the sum of its proper divisors (7014754).

12919454 is a wasteful number, since it uses less digits than its factorization.

12919454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039.

The product of its digits is 12960, while the sum is 35.

The square root of 12919454 is about 3594.3641996882. The cubic root of 12919454 is about 234.6468454369.

The spelling of 12919454 in words is "twelve million, nine hundred nineteen thousand, four hundred fifty-four".