1158168 has 64 divisors (see below), whose sum is σ = 3265920. Its totient is φ = 339200.

The previous prime is 1158161. The next prime is 1158187. The reversal of 1158168 is 8618511.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1158161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10771 + ... + 10877.

It is an arithmetic number, because the mean of its divisors is an integer number (51030).

2^1158168 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 1158168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1632960).

1158168 is an abundant number, since it is smaller than the sum of its proper divisors (2107752).

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

1158168 is a wasteful number, since it uses less digits than its factorization.

1158168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168 (or 164 counting only the distinct ones).

The product of its digits is 1920, while the sum is 30.

The square root of 1158168 is about 1076.1821407178. The cubic root of 1158168 is about 105.0164146673.

It can be divided in two parts, 1158 and 168, that added together give a triangular number (1326 = T₅₁).

The spelling of 1158168 in words is "one million, one hundred fifty-eight thousand, one hundred sixty-eight".