1161322067 has 4 divisors (see below), whose sum is σ = 1161405960. Its totient is φ = 1161238176.

The previous prime is 1161322051. The next prime is 1161322073. The reversal of 1161322067 is 7602231611.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1161322067 - 2⁴ = 1161322051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1161322667) 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, 15713 + ... + 50690.

It is an arithmetic number, because the mean of its divisors is an integer number (290351490).

Almost surely, 2^1161322067 is an apocalyptic number.

1161322067 is a deficient number, since it is larger than the sum of its proper divisors (83893).

1161322067 is an equidigital number, since it uses as much as digits as its factorization.

1161322067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83892.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 1161322067 is about 34078.1758167893. The cubic root of 1161322067 is about 1051.1165950828.

Adding to 1161322067 its reverse (7602231611), we get a palindrome (8763553678).

The spelling of 1161322067 in words is "one billion, one hundred sixty-one million, three hundred twenty-two thousand, sixty-seven".