1133232161 has 2 divisors, whose sum is σ = 1133232162. Its totient is φ = 1133232160.

The previous prime is 1133232157. The next prime is 1133232193. The reversal of 1133232161 is 1612323311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1071907600 + 61324561 = 32740^2 + 7831^2 .

It is an emirp because it is prime and its reverse (1612323311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1133232161 - 2² = 1133232157 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 (1133232151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 566616080 + 566616081.

It is an arithmetic number, because the mean of its divisors is an integer number (566616081).

Almost surely, 2^1133232161 is an apocalyptic number.

It is an amenable number.

1133232161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1133232161 is an equidigital number, since it uses as much as digits as its factorization.

1133232161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 23.

The square root of 1133232161 is about 33663.5137946115. The cubic root of 1133232161 is about 1042.5725762300.

Adding to 1133232161 its reverse (1612323311), we get a palindrome (2745555472).

The spelling of 1133232161 in words is "one billion, one hundred thirty-three million, two hundred thirty-two thousand, one hundred sixty-one".