1161441633 has 32 divisors (see below), whose sum is σ = 1781360640. Its totient is φ = 665703360.

The previous prime is 1161441601. The next prime is 1161441703. The reversal of 1161441633 is 3361441611.

It is not a de Polignac number, because 1161441633 - 2⁵ = 1161441601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1161441633.

It is not an unprimeable number, because it can be changed into a prime (1161441733) 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 in 31 ways as a sum of consecutive naturals, for example, 473416 + ... + 475862.

It is an arithmetic number, because the mean of its divisors is an integer number (55667520).

Almost surely, 2^1161441633 is an apocalyptic number.

It is an amenable number.

1161441633 is a deficient number, since it is larger than the sum of its proper divisors (619919007).

1161441633 is a wasteful number, since it uses less digits than its factorization.

1161441633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3237.

The product of its digits is 5184, while the sum is 30.

The square root of 1161441633 is about 34079.9300615480. The cubic root of 1161441633 is about 1051.1526670441.

The spelling of 1161441633 in words is "one billion, one hundred sixty-one million, four hundred forty-one thousand, six hundred thirty-three".