1122705 has 24 divisors (see below), whose sum is σ = 1982760. Its totient is φ = 587520.

The previous prime is 1122701. The next prime is 1122721. The reversal of 1122705 is 5072211.

It can be written as a sum of positive squares in 4 ways, for example, as 76176 + 1046529 = 276^2 + 1023^2 .

It is not a de Polignac number, because 1122705 - 2² = 1122701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2541 + ... + 2949.

It is an arithmetic number, because the mean of its divisors is an integer number (82615).

2^1122705 is an apocalyptic number.

1122705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1122705 is a deficient number, since it is larger than the sum of its proper divisors (860055).

1122705 is a wasteful number, since it uses less digits than its factorization.

1122705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481 (or 478 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 1122705 is about 1059.5777460857. The cubic root of 1122705 is about 103.9334201565.

Adding to 1122705 its reverse (5072211), we get a palindrome (6194916).

The spelling of 1122705 in words is "one million, one hundred twenty-two thousand, seven hundred five".