1331132633 has 2 divisors, whose sum is σ = 1331132634. Its totient is φ = 1331132632.

The previous prime is 1331132629. The next prime is 1331132681. The reversal of 1331132633 is 3362311331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 712516249 + 618616384 = 26693^2 + 24872^2 .

It is a cyclic number.

It is not a de Polignac number, because 1331132633 - 2² = 1331132629 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 (1331132333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665566316 + 665566317.

It is an arithmetic number, because the mean of its divisors is an integer number (665566317).

Almost surely, 2^1331132633 is an apocalyptic number.

It is an amenable number.

1331132633 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331132633 is an equidigital number, since it uses as much as digits as its factorization.

1331132633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2916, while the sum is 26.

The square root of 1331132633 is about 36484.6903919987. The cubic root of 1331132633 is about 1100.0365368029.

Adding to 1331132633 its reverse (3362311331), we get a palindrome (4693443964).

The spelling of 1331132633 in words is "one billion, three hundred thirty-one million, one hundred thirty-two thousand, six hundred thirty-three".