1209168 has 60 divisors (see below), whose sum is σ = 3520608. Its totient is φ = 401760.

The previous prime is 1209163. The next prime is 1209181. The reversal of 1209168 is 8619021.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1209163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3733 + ... + 4043.

2^1209168 is an apocalyptic number.

1209168 is a gapful number since it is divisible by the number (18) 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 1209168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1760304).

1209168 is an abundant number, since it is smaller than the sum of its proper divisors (2311440).

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

1209168 is an equidigital number, since it uses as much as digits as its factorization.

1209168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 1209168 is about 1099.6217531497. The cubic root of 1209168 is about 106.5357943559.

The spelling of 1209168 in words is "one million, two hundred nine thousand, one hundred sixty-eight".