12147346229 has 2 divisors, whose sum is σ = 12147346230. Its totient is φ = 12147346228.

The previous prime is 12147346213. The next prime is 12147346231. The reversal of 12147346229 is 92264374121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12147346225 + 4 = 110215^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 12147346229 - 2⁴ = 12147346213 is a prime.

Together with 12147346231, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12147346529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6073673114 + 6073673115.

It is an arithmetic number, because the mean of its divisors is an integer number (6073673115).

Almost surely, 2^12147346229 is an apocalyptic number.

It is an amenable number.

12147346229 is a deficient number, since it is larger than the sum of its proper divisors (1).

12147346229 is an equidigital number, since it uses as much as digits as its factorization.

12147346229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 41.

The spelling of 12147346229 in words is "twelve billion, one hundred forty-seven million, three hundred forty-six thousand, two hundred twenty-nine".