1161633433 has 4 divisors (see below), whose sum is σ = 1188648208. Its totient is φ = 1134618660.

The previous prime is 1161633427. The next prime is 1161633437. The reversal of 1161633433 is 3343361611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1161633433 - 2⁵ = 1161633401 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1161633395 and 1161633404.

It is not an unprimeable number, because it can be changed into a prime (1161633437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13507323 + ... + 13507408.

It is an arithmetic number, because the mean of its divisors is an integer number (297162052).

Almost surely, 2^1161633433 is an apocalyptic number.

It is an amenable number.

1161633433 is a deficient number, since it is larger than the sum of its proper divisors (27014775).

1161633433 is an equidigital number, since it uses as much as digits as its factorization.

1161633433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27014774.

The product of its digits is 11664, while the sum is 31.

The square root of 1161633433 is about 34082.7439182939. The cubic root of 1161633433 is about 1051.2105261676.

The spelling of 1161633433 in words is "one billion, one hundred sixty-one million, six hundred thirty-three thousand, four hundred thirty-three".