12999453 has 8 divisors (see below), whose sum is σ = 17930400. Its totient is φ = 8367408.

The previous prime is 12999451. The next prime is 12999457. The reversal of 12999453 is 35499921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12999453 - 2¹ = 12999451 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12999451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74623 + ... + 74796.

It is an arithmetic number, because the mean of its divisors is an integer number (2241300).

Almost surely, 2^12999453 is an apocalyptic number.

It is an amenable number.

12999453 is a deficient number, since it is larger than the sum of its proper divisors (4930947).

12999453 is a wasteful number, since it uses less digits than its factorization.

12999453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149451.

The product of its digits is 87480, while the sum is 42.

The square root of 12999453 is about 3605.4754194142. The cubic root of 12999453 is about 235.1301708282.

The spelling of 12999453 in words is "twelve million, nine hundred ninety-nine thousand, four hundred fifty-three".