1213168 has 40 divisors (see below), whose sum is σ = 2629296. Its totient is φ = 537600.

The previous prime is 1213153. The next prime is 1213183. The reversal of 1213168 is 8613121.

It is an interprime number because it is at equal distance from previous prime (1213153) and next prime (1213183).

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10680 + ... + 10792.

2^1213168 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 1213168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1314648).

1213168 is an abundant number, since it is smaller than the sum of its proper divisors (1416128).

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

1213168 is a wasteful number, since it uses less digits than its factorization.

1213168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 187 counting only the distinct ones).

The product of its digits is 288, while the sum is 22.

The square root of 1213168 is about 1101.4390586864. The cubic root of 1213168 is about 106.6531406460.

Adding to 1213168 its reverse (8613121), we get a palindrome (9826289).

The spelling of 1213168 in words is "one million, two hundred thirteen thousand, one hundred sixty-eight".