1126312657 has 2 divisors, whose sum is σ = 1126312658. Its totient is φ = 1126312656.

The previous prime is 1126312651. The next prime is 1126312661. The reversal of 1126312657 is 7562136211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 673091136 + 453221521 = 25944^2 + 21289^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1126312657 is a prime.

It is not a weakly prime, because it can be changed into another prime (1126312651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563156328 + 563156329.

It is an arithmetic number, because the mean of its divisors is an integer number (563156329).

Almost surely, 2^1126312657 is an apocalyptic number.

It is an amenable number.

1126312657 is a deficient number, since it is larger than the sum of its proper divisors (1).

1126312657 is an equidigital number, since it uses as much as digits as its factorization.

1126312657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 34.

The square root of 1126312657 is about 33560.5818930483. The cubic root of 1126312657 is about 1040.4462634245.

Adding to 1126312657 its reverse (7562136211), we get a palindrome (8688448868).

The spelling of 1126312657 in words is "one billion, one hundred twenty-six million, three hundred twelve thousand, six hundred fifty-seven".