1126212643 has 2 divisors, whose sum is σ = 1126212644. Its totient is φ = 1126212642.

The previous prime is 1126212629. The next prime is 1126212667. The reversal of 1126212643 is 3462126211.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1126212643 is a prime.

It is not a weakly prime, because it can be changed into another prime (1126212673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563106321 + 563106322.

It is an arithmetic number, because the mean of its divisors is an integer number (563106322).

Almost surely, 2^1126212643 is an apocalyptic number.

1126212643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1126212643 is an equidigital number, since it uses as much as digits as its factorization.

1126212643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 28.

The square root of 1126212643 is about 33559.0918083312. The cubic root of 1126212643 is about 1040.4154660930.

Adding to 1126212643 its reverse (3462126211), we get a palindrome (4588338854).

The spelling of 1126212643 in words is "one billion, one hundred twenty-six million, two hundred twelve thousand, six hundred forty-three".