126317 has 2 divisors, whose sum is σ = 126318. Its totient is φ = 126316.

The previous prime is 126311. The next prime is 126323. The reversal of 126317 is 713621.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (126311) and next prime (126323).

It can be written as a sum of positive squares in only one way, i.e., 81796 + 44521 = 286^2 + 211^2 .

126317 is a truncatable prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126317 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63158 + 63159.

It is an arithmetic number, because the mean of its divisors is an integer number (63159).

2¹²⁶³¹⁷ is an apocalyptic number.

It is an amenable number.

126317 is a deficient number, since it is larger than the sum of its proper divisors (1).

126317 is an equidigital number, since it uses as much as digits as its factorization.

126317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 252, while the sum is 20.

The square root of 126317 is about 355.4110296544. The cubic root of 126317 is about 50.1749868774.

Adding to 126317 its reverse (713621), we get a palindrome (839938).

The spelling of 126317 in words is "one hundred twenty-six thousand, three hundred seventeen".