12812354 has 4 divisors (see below), whose sum is σ = 19218534. Its totient is φ = 6406176.

The previous prime is 12812353. The next prime is 12812363. The reversal of 12812354 is 45321821.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8254129 + 4558225 = 2873^2 + 2135^2 .

It is not an unprimeable number, because it can be changed into a prime (12812353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3203087 + ... + 3203090.

Almost surely, 2^12812354 is an apocalyptic number.

12812354 is a deficient number, since it is larger than the sum of its proper divisors (6406180).

12812354 is an equidigital number, since it uses as much as digits as its factorization.

12812354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6406179.

The product of its digits is 1920, while the sum is 26.

The square root of 12812354 is about 3579.4348715964. The cubic root of 12812354 is about 233.9966517650.

The spelling of 12812354 in words is "twelve million, eight hundred twelve thousand, three hundred fifty-four".