1262117317 has 2 divisors, whose sum is σ = 1262117318. Its totient is φ = 1262117316.

The previous prime is 1262117303. The next prime is 1262117327. The reversal of 1262117317 is 7137112621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1221782116 + 40335201 = 34954^2 + 6351^2 .

It is a cyclic number.

It is not a de Polignac number, because 1262117317 - 2¹¹ = 1262115269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1262117327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631058658 + 631058659.

It is an arithmetic number, because the mean of its divisors is an integer number (631058659).

Almost surely, 2^1262117317 is an apocalyptic number.

It is an amenable number.

1262117317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1262117317 is an equidigital number, since it uses as much as digits as its factorization.

1262117317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3528, while the sum is 31.

The square root of 1262117317 is about 35526.2905043575. The cubic root of 1262117317 is about 1080.6869535046.

Adding to 1262117317 its reverse (7137112621), we get a palindrome (8399229938).

The spelling of 1262117317 in words is "one billion, two hundred sixty-two million, one hundred seventeen thousand, three hundred seventeen".