12816954 has 40 divisors (see below), whose sum is σ = 29212788. Its totient is φ = 4199040.

The previous prime is 12816953. The next prime is 12816959. The reversal of 12816954 is 45961821.

12816954 is nontrivially palindromic in base 11.

It can be written as a sum of positive squares in 2 ways, for example, as 12766329 + 50625 = 3573^2 + 225^2 .

It is not an unprimeable number, because it can be changed into a prime (12816953) 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 19 ways as a sum of consecutive naturals, for example, 9234 + ... + 10530.

Almost surely, 2^12816954 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12816954, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14606394).

12816954 is an abundant number, since it is smaller than the sum of its proper divisors (16395834).

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

12816954 is a wasteful number, since it uses less digits than its factorization.

12816954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372 (or 1363 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 12816954 is about 3580.0773734656. The cubic root of 12816954 is about 234.0246522351.

The spelling of 12816954 in words is "twelve million, eight hundred sixteen thousand, nine hundred fifty-four".