1161532183 has 4 divisors (see below), whose sum is σ = 1327465360. Its totient is φ = 995599008.

The previous prime is 1161532121. The next prime is 1161532201. The reversal of 1161532183 is 3812351611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3812351611 = 59 ⋅64616129.

It is a cyclic number.

It is not a de Polignac number, because 1161532183 - 2²⁵ = 1127977751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161532283) 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, 82966578 + ... + 82966591.

It is an arithmetic number, because the mean of its divisors is an integer number (331866340).

Almost surely, 2^1161532183 is an apocalyptic number.

1161532183 is a deficient number, since it is larger than the sum of its proper divisors (165933177).

1161532183 is an equidigital number, since it uses as much as digits as its factorization.

1161532183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165933176.

The product of its digits is 4320, while the sum is 31.

The square root of 1161532183 is about 34081.2585301658. The cubic root of 1161532183 is about 1051.1799834980.

Adding to 1161532183 its reverse (3812351611), we get a palindrome (4973883794).

It can be divided in two parts, 116153 and 2183, that added together give a square (118336 = 344²).

The spelling of 1161532183 in words is "one billion, one hundred sixty-one million, five hundred thirty-two thousand, one hundred eighty-three".