1177431168 has 128 divisors (see below), whose sum is σ = 3255840000. Its totient is φ = 376676352.

The previous prime is 1177431163. The next prime is 1177431191. The reversal of 1177431168 is 8611347711.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (1177431163) 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, 1121908 + ... + 1122956.

It is an arithmetic number, because the mean of its divisors is an integer number (25436250).

Almost surely, 2^1177431168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1177431168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1627920000).

1177431168 is an abundant number, since it is smaller than the sum of its proper divisors (2078408832).

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

1177431168 is a wasteful number, since it uses less digits than its factorization.

1177431168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182 (or 1170 counting only the distinct ones).

The product of its digits is 28224, while the sum is 39.

The square root of 1177431168 is about 34313.7169073827. The cubic root of 1177431168 is about 1055.9544287038.

Adding to 1177431168 its reverse (8611347711), we get a palindrome (9788778879).

The spelling of 1177431168 in words is "one billion, one hundred seventy-seven million, four hundred thirty-one thousand, one hundred sixty-eight".