1168023285 has 144 divisors (see below), whose sum is σ = 2483535600. Its totient is φ = 503838720.

The previous prime is 1168023223. The next prime is 1168023299. The reversal of 1168023285 is 5823208611.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 209873169 + 958150116 = 14487^2 + 30954^2 .

It is not a de Polignac number, because 1168023285 - 2⁶ = 1168023221 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2052481 + ... + 2053049.

It is an arithmetic number, because the mean of its divisors is an integer number (17246775).

Almost surely, 2^1168023285 is an apocalyptic number.

1168023285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1168023285 is an abundant number, since it is smaller than the sum of its proper divisors (1315512315).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1168023285 is a wasteful number, since it uses less digits than its factorization.

1168023285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644 (or 630 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 1168023285 is about 34176.3556424614. The cubic root of 1168023285 is about 1053.1344838964.

The spelling of 1168023285 in words is "one billion, one hundred sixty-eight million, twenty-three thousand, two hundred eighty-five".