1167072312 has 64 divisors (see below), whose sum is σ = 3358897920. Its totient is φ = 331008768.

The previous prime is 1167072311. The next prime is 1167072323. The reversal of 1167072312 is 2132707611.

It is a self number, because there is not a number n which added to its sum of digits gives 1167072312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1167072311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2338 + ... + 48369.

It is an arithmetic number, because the mean of its divisors is an integer number (52482780).

Almost surely, 2^1167072312 is an apocalyptic number.

1167072312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1167072312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1679448960).

1167072312 is an abundant number, since it is smaller than the sum of its proper divisors (2191825608).

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

1167072312 is a wasteful number, since it uses less digits than its factorization.

1167072312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50860 (or 50856 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 1167072312 is about 34162.4400767861. The cubic root of 1167072312 is about 1052.8485950806.

Adding to 1167072312 its reverse (2132707611), we get a palindrome (3299779923).

The spelling of 1167072312 in words is "one billion, one hundred sixty-seven million, seventy-two thousand, three hundred twelve".