1317157 has 2 divisors, whose sum is σ = 1317158. Its totient is φ = 1317156.

The previous prime is 1317131. The next prime is 1317161. The reversal of 1317157 is 7517131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1256641 + 60516 = 1121^2 + 246^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1317157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1317257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658578 + 658579.

It is an arithmetic number, because the mean of its divisors is an integer number (658579).

2^1317157 is an apocalyptic number.

It is an amenable number.

1317157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1317157 is an equidigital number, since it uses as much as digits as its factorization.

1317157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 735, while the sum is 25.

The square root of 1317157 is about 1147.6746054523. The cubic root of 1317157 is about 109.6173203753.

The spelling of 1317157 in words is "one million, three hundred seventeen thousand, one hundred fifty-seven".