1133026721 has 2 divisors, whose sum is σ = 1133026722. Its totient is φ = 1133026720.

The previous prime is 1133026709. The next prime is 1133026747. The reversal of 1133026721 is 1276203311.

It is an a-pointer prime, because the next prime (1133026747) can be obtained adding 1133026721 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1112956321 + 20070400 = 33361^2 + 4480^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1133026721 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1133029721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 566513360 + 566513361.

It is an arithmetic number, because the mean of its divisors is an integer number (566513361).

Almost surely, 2^1133026721 is an apocalyptic number.

It is an amenable number.

1133026721 is a deficient number, since it is larger than the sum of its proper divisors (1).

1133026721 is an equidigital number, since it uses as much as digits as its factorization.

1133026721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 1133026721 is about 33660.4622814364. The cubic root of 1133026721 is about 1042.5095708837.

The spelling of 1133026721 in words is "one billion, one hundred thirty-three million, twenty-six thousand, seven hundred twenty-one".