1001161633 has 2 divisors, whose sum is σ = 1001161634. Its totient is φ = 1001161632.

The previous prime is 1001161631. The next prime is 1001161649. The reversal of 1001161633 is 3361611001.

It is a happy number.

1001161633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 997801744 + 3359889 = 31588^2 + 1833^2 .

It is a cyclic number.

It is not a de Polignac number, because 1001161633 - 2¹ = 1001161631 is a prime.

Together with 1001161631, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1001161631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500580816 + 500580817.

It is an arithmetic number, because the mean of its divisors is an integer number (500580817).

Almost surely, 2^1001161633 is an apocalyptic number.

It is an amenable number.

1001161633 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001161633 is an equidigital number, since it uses as much as digits as its factorization.

1001161633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 1001161633 is about 31641.1383012685. The cubic root of 1001161633 is about 1000.3870611643.

Adding to 1001161633 its reverse (3361611001), we get a palindrome (4362772634).

The spelling of 1001161633 in words is "one billion, one million, one hundred sixty-one thousand, six hundred thirty-three".