12145563233 has 8 divisors (see below), whose sum is σ = 12419090688. Its totient is φ = 11872665504.

The previous prime is 12145563229. The next prime is 12145563281. The reversal of 12145563233 is 33236554121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12145563233 - 2² = 12145563229 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12145563193 and 12145563202.

It is not an unprimeable number, because it can be changed into a prime (12145566233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118316 + ... + 195677.

It is an arithmetic number, because the mean of its divisors is an integer number (1552386336).

Almost surely, 2^12145563233 is an apocalyptic number.

It is an amenable number.

12145563233 is a deficient number, since it is larger than the sum of its proper divisors (273527455).

12145563233 is an equidigital number, since it uses as much as digits as its factorization.

12145563233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314863.

The product of its digits is 64800, while the sum is 35.

The spelling of 12145563233 in words is "twelve billion, one hundred forty-five million, five hundred sixty-three thousand, two hundred thirty-three".