12502505149 has 2 divisors, whose sum is σ = 12502505150. Its totient is φ = 12502505148.

The previous prime is 12502505129. The next prime is 12502505167. The reversal of 12502505149 is 94150520521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12473539225 + 28965924 = 111685^2 + 5382^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12502505149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12502505129) 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 as a sum of consecutive naturals, namely, 6251252574 + 6251252575.

It is an arithmetic number, because the mean of its divisors is an integer number (6251252575).

Almost surely, 2^12502505149 is an apocalyptic number.

It is an amenable number.

12502505149 is a deficient number, since it is larger than the sum of its proper divisors (1).

12502505149 is an equidigital number, since it uses as much as digits as its factorization.

12502505149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18000, while the sum is 34.

The spelling of 12502505149 in words is "twelve billion, five hundred two million, five hundred five thousand, one hundred forty-nine".