12445510157 has 2 divisors, whose sum is σ = 12445510158. Its totient is φ = 12445510156.

The previous prime is 12445510117. The next prime is 12445510159. The reversal of 12445510157 is 75101554421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9380116201 + 3065393956 = 96851^2 + 55366^2 .

It is an emirp because it is prime and its reverse (75101554421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12445510157 - 2¹⁰ = 12445509133 is a prime.

Together with 12445510159, 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 (12445510159) 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, 6222755078 + 6222755079.

It is an arithmetic number, because the mean of its divisors is an integer number (6222755079).

Almost surely, 2^12445510157 is an apocalyptic number.

It is an amenable number.

12445510157 is a deficient number, since it is larger than the sum of its proper divisors (1).

12445510157 is an equidigital number, since it uses as much as digits as its factorization.

12445510157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28000, while the sum is 35.

The spelling of 12445510157 in words is "twelve billion, four hundred forty-five million, five hundred ten thousand, one hundred fifty-seven".