1191483161 has 8 divisors (see below), whose sum is σ = 1300882464. Its totient is φ = 1082264320.

The previous prime is 1191483127. The next prime is 1191483193. The reversal of 1191483161 is 1613841911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1191483161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1191483061) 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 7 ways as a sum of consecutive naturals, for example, 31115 + ... + 57888.

It is an arithmetic number, because the mean of its divisors is an integer number (162610308).

Almost surely, 2^1191483161 is an apocalyptic number.

1191483161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1191483161 is a deficient number, since it is larger than the sum of its proper divisors (109399303).

1191483161 is a wasteful number, since it uses less digits than its factorization.

1191483161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90231.

The product of its digits is 5184, while the sum is 35.

The square root of 1191483161 is about 34517.8672718927. The cubic root of 1191483161 is about 1060.1385724261.

The spelling of 1191483161 in words is "one billion, one hundred ninety-one million, four hundred eighty-three thousand, one hundred sixty-one".