1316347157 has 2 divisors, whose sum is σ = 1316347158. Its totient is φ = 1316347156.

The previous prime is 1316347127. The next prime is 1316347163. The reversal of 1316347157 is 7517436131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 711875761 + 604471396 = 26681^2 + 24586^2 .

It is an emirp because it is prime and its reverse (7517436131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1316347157 - 2¹⁰ = 1316346133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1316347157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1316347117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658173578 + 658173579.

It is an arithmetic number, because the mean of its divisors is an integer number (658173579).

Almost surely, 2^1316347157 is an apocalyptic number.

It is an amenable number.

1316347157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1316347157 is an equidigital number, since it uses as much as digits as its factorization.

1316347157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 38.

The square root of 1316347157 is about 36281.4988251588. The cubic root of 1316347157 is about 1095.9485000421.

The spelling of 1316347157 in words is "one billion, three hundred sixteen million, three hundred forty-seven thousand, one hundred fifty-seven".