1167231285 has 24 divisors (see below), whose sum is σ = 2207129184. Its totient is φ = 565930080.

The previous prime is 1167231281. The next prime is 1167231287. The reversal of 1167231285 is 5821327611.

It is not a de Polignac number, because 1167231285 - 2² = 1167231281 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1167231281) 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 23 ways as a sum of consecutive naturals, for example, 1178527 + ... + 1179516.

It is an arithmetic number, because the mean of its divisors is an integer number (91963716).

Almost surely, 2^1167231285 is an apocalyptic number.

1167231285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1167231285 is a deficient number, since it is larger than the sum of its proper divisors (1039897899).

1167231285 is a wasteful number, since it uses less digits than its factorization.

1167231285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2358065 (or 2358062 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 1167231285 is about 34164.7667195314. The cubic root of 1167231285 is about 1052.8963975744.

Adding to 1167231285 its reverse (5821327611), we get a palindrome (6988558896).

The spelling of 1167231285 in words is "one billion, one hundred sixty-seven million, two hundred thirty-one thousand, two hundred eighty-five".