12000451 has 4 divisors (see below), whose sum is σ = 12025000. Its totient is φ = 11975904.

The previous prime is 12000433. The next prime is 12000467. The reversal of 12000451 is 15400021.

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

It is a cyclic number.

It is not a de Polignac number, because 12000451 - 2¹⁷ = 11869379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12000421) 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 3 ways as a sum of consecutive naturals, for example, 11526 + ... + 12523.

It is an arithmetic number, because the mean of its divisors is an integer number (3006250).

Almost surely, 2^12000451 is an apocalyptic number.

12000451 is a deficient number, since it is larger than the sum of its proper divisors (24549).

12000451 is an equidigital number, since it uses as much as digits as its factorization.

12000451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24548.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 12000451 is about 3464.1667107690. The cubic root of 12000451 is about 228.9457166199.

Adding to 12000451 its reverse (15400021), we get a palindrome (27400472).

The spelling of 12000451 in words is "twelve million, four hundred fifty-one", and thus it is an aban number.