12146523097 has 2 divisors, whose sum is σ = 12146523098. Its totient is φ = 12146523096.

The previous prime is 12146523047. The next prime is 12146523131. The reversal of 12146523097 is 79032564121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11623211721 + 523311376 = 107811^2 + 22876^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12146523097 is a prime.

It is not a weakly prime, because it can be changed into another prime (12146523017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6073261548 + 6073261549.

It is an arithmetic number, because the mean of its divisors is an integer number (6073261549).

Almost surely, 2^12146523097 is an apocalyptic number.

It is an amenable number.

12146523097 is a deficient number, since it is larger than the sum of its proper divisors (1).

12146523097 is an equidigital number, since it uses as much as digits as its factorization.

12146523097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 40.

The spelling of 12146523097 in words is "twelve billion, one hundred forty-six million, five hundred twenty-three thousand, ninety-seven".