1168144185 has 64 divisors (see below), whose sum is σ = 2059223040. Its totient is φ = 561980160.

The previous prime is 1168144183. The next prime is 1168144189. The reversal of 1168144185 is 5814418611.

It is not a de Polignac number, because 1168144185 - 2¹ = 1168144183 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (1168144183) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1924152 + ... + 1924758.

It is an arithmetic number, because the mean of its divisors is an integer number (32175360).

Almost surely, 2^1168144185 is an apocalyptic number.

1168144185 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1168144185 is a deficient number, since it is larger than the sum of its proper divisors (891078855).

1168144185 is a wasteful number, since it uses less digits than its factorization.

1168144185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838.

The product of its digits is 30720, while the sum is 39.

The square root of 1168144185 is about 34178.1243633995. The cubic root of 1168144185 is about 1053.1708186647.

The spelling of 1168144185 in words is "one billion, one hundred sixty-eight million, one hundred forty-four thousand, one hundred eighty-five".