1005243122 has 16 divisors (see below), whose sum is σ = 1626414552. Its totient is φ = 463226880.

The previous prime is 1005243101. The next prime is 1005243131. The reversal of 1005243122 is 2213425001.

It can be written as a sum of positive squares in 4 ways, for example, as 584624041 + 420619081 = 24179^2 + 20509^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1005243094 and 1005243103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13493 + ... + 46824.

Almost surely, 2^1005243122 is an apocalyptic number.

1005243122 is a deficient number, since it is larger than the sum of its proper divisors (621171430).

1005243122 is a wasteful number, since it uses less digits than its factorization.

1005243122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60973.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1005243122 is about 31705.5692584126. The cubic root of 1005243122 is about 1001.7446617187.

Adding to 1005243122 its reverse (2213425001), we get a palindrome (3218668123).

The spelling of 1005243122 in words is "one billion, five million, two hundred forty-three thousand, one hundred twenty-two".