12145000451 has 4 divisors (see below), whose sum is σ = 12563793600. Its totient is φ = 11726207304.

The previous prime is 12145000433. The next prime is 12145000463. The reversal of 12145000451 is 15400054121.

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

It is a de Polignac number, because none of the positive numbers 2^k-12145000451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12145000471) 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, 209396531 + ... + 209396588.

It is an arithmetic number, because the mean of its divisors is an integer number (3140948400).

Almost surely, 2^12145000451 is an apocalyptic number.

12145000451 is a deficient number, since it is larger than the sum of its proper divisors (418793149).

12145000451 is an equidigital number, since it uses as much as digits as its factorization.

12145000451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418793148.

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 12145000451 its reverse (15400054121), we get a palindrome (27545054572).

The spelling of 12145000451 in words is "twelve billion, one hundred forty-five million, four hundred fifty-one", and thus it is an aban number.