1183682161 has 4 divisors (see below), whose sum is σ = 1192198000. Its totient is φ = 1175166324.

The previous prime is 1183682153. The next prime is 1183682221. The reversal of 1183682161 is 1612863811.

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 1183682161 - 2³ = 1183682153 is a prime.

It is a super-2 number, since 2×1183682161² = 2802206916539259842, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1183682161.

It is not an unprimeable number, because it can be changed into a prime (1183688161) 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, 4257711 + ... + 4257988.

It is an arithmetic number, because the mean of its divisors is an integer number (298049500).

Almost surely, 2^1183682161 is an apocalyptic number.

It is an amenable number.

1183682161 is a deficient number, since it is larger than the sum of its proper divisors (8515839).

1183682161 is an equidigital number, since it uses as much as digits as its factorization.

1183682161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8515838.

The product of its digits is 13824, while the sum is 37.

The square root of 1183682161 is about 34404.6822540189. The cubic root of 1183682161 is about 1057.8198220790.

The spelling of 1183682161 in words is "one billion, one hundred eighty-three million, six hundred eighty-two thousand, one hundred sixty-one".