1223168 has 20 divisors (see below), whose sum is σ = 2444970. Its totient is φ = 611328.

The previous prime is 1223161. The next prime is 1223177. The reversal of 1223168 is 8613221.

It can be written as a sum of positive squares in only one way, i.e., 1149184 + 73984 = 1072^2 + 272^2 .

It is a super-2 number, since 2×1223168² = 2992279912448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1223161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 683 + ... + 1706.

2^1223168 is an apocalyptic number.

It is an amenable number.

1223168 is a deficient number, since it is larger than the sum of its proper divisors (1221802).

1223168 is an frugal number, since it uses more digits than its factorization.

1223168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2407 (or 2391 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 1223168 is about 1105.9692581623. The cubic root of 1223168 is about 106.9453822048.

Adding to 1223168 its reverse (8613221), we get a palindrome (9836389).

The spelling of 1223168 in words is "one million, two hundred twenty-three thousand, one hundred sixty-eight".