12146263147 has 4 divisors (see below), whose sum is σ = 12146495256. Its totient is φ = 12146031040.

The previous prime is 12146263121. The next prime is 12146263183. The reversal of 12146263147 is 74136264121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12146263147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12146263117) 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 3 ways as a sum of consecutive naturals, for example, 3483 + ... + 155899.

It is an arithmetic number, because the mean of its divisors is an integer number (3036623814).

Almost surely, 2^12146263147 is an apocalyptic number.

12146263147 is a deficient number, since it is larger than the sum of its proper divisors (232109).

12146263147 is an equidigital number, since it uses as much as digits as its factorization.

12146263147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232108.

The product of its digits is 48384, while the sum is 37.

The spelling of 12146263147 in words is "twelve billion, one hundred forty-six million, two hundred sixty-three thousand, one hundred forty-seven".