157259126317 has 2 divisors, whose sum is σ = 157259126318. Its totient is φ = 157259126316.

The previous prime is 157259126267. The next prime is 157259126341. The reversal of 157259126317 is 713621952751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104441434276 + 52817692041 = 323174^2 + 229821^2 .

It is an emirp because it is prime and its reverse (713621952751) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157259126317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157259126357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78629563158 + 78629563159.

It is an arithmetic number, because the mean of its divisors is an integer number (78629563159).

Almost surely, 2^157259126317 is an apocalyptic number.

It is an amenable number.

157259126317 is a deficient number, since it is larger than the sum of its proper divisors (1).

157259126317 is an equidigital number, since it uses as much as digits as its factorization.

157259126317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 793800, while the sum is 49.

The spelling of 157259126317 in words is "one hundred fifty-seven billion, two hundred fifty-nine million, one hundred twenty-six thousand, three hundred seventeen".