12443415157 has 2 divisors, whose sum is σ = 12443415158. Its totient is φ = 12443415156.

The previous prime is 12443415151. The next prime is 12443415161. The reversal of 12443415157 is 75151434421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11068933681 + 1374481476 = 105209^2 + 37074^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12443415157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12443415151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6221707578 + 6221707579.

It is an arithmetic number, because the mean of its divisors is an integer number (6221707579).

Almost surely, 2^12443415157 is an apocalyptic number.

It is an amenable number.

12443415157 is a deficient number, since it is larger than the sum of its proper divisors (1).

12443415157 is an equidigital number, since it uses as much as digits as its factorization.

12443415157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67200, while the sum is 37.

Adding to 12443415157 its reverse (75151434421), we get a palindrome (87594849578).

The spelling of 12443415157 in words is "twelve billion, four hundred forty-three million, four hundred fifteen thousand, one hundred fifty-seven".