1223056 has 10 divisors (see below), whose sum is σ = 2369702. Its totient is φ = 611520.

The previous prime is 1223051. The next prime is 1223059. The reversal of 1223056 is 6503221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 614656 + 608400 = 784^2 + 780^2 .

It is not an unprimeable number, because it can be changed into a prime (1223051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38205 + ... + 38236.

2^1223056 is an apocalyptic number.

1223056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1223056 is a deficient number, since it is larger than the sum of its proper divisors (1146646).

1223056 is an equidigital number, since it uses as much as digits as its factorization.

1223056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76449 (or 76443 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1223056 is about 1105.9186226843. The cubic root of 1223056 is about 106.9421179357.

Adding to 1223056 its reverse (6503221), we get a palindrome (7726277).

It can be divided in two parts, 12 and 23056, that multiplied together give a palindrome (276672).

The spelling of 1223056 in words is "one million, two hundred twenty-three thousand, fifty-six".