1122656 has 12 divisors (see below), whose sum is σ = 2210292. Its totient is φ = 561312.

The previous prime is 1122647. The next prime is 1122659. The reversal of 1122656 is 6562211.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17510 + ... + 17573.

It is an arithmetic number, because the mean of its divisors is an integer number (184191).

2^1122656 is an apocalyptic number.

1122656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1122656 is a deficient number, since it is larger than the sum of its proper divisors (1087636).

1122656 is an equidigital number, since it uses as much as digits as its factorization.

1122656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35093 (or 35085 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

The square root of 1122656 is about 1059.5546234150. The cubic root of 1122656 is about 103.9319080906.

Adding to 1122656 its reverse (6562211), we get a palindrome (7684867).

The spelling of 1122656 in words is "one million, one hundred twenty-two thousand, six hundred fifty-six".