1005623122 has 8 divisors (see below), whose sum is σ = 1723925376. Its totient is φ = 430981332.

The previous prime is 1005623063. The next prime is 1005623131. The reversal of 1005623122 is 2213265001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1005623122² = 2022555727002053768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1005623093 and 1005623102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35915098 + ... + 35915125.

It is an arithmetic number, because the mean of its divisors is an integer number (215490672).

Almost surely, 2^1005623122 is an apocalyptic number.

1005623122 is a deficient number, since it is larger than the sum of its proper divisors (718302254).

1005623122 is an equidigital number, since it uses as much as digits as its factorization.

1005623122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71830232.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1005623122 is about 31711.5613302152. The cubic root of 1005623122 is about 1001.8708716565.

Adding to 1005623122 its reverse (2213265001), we get a palindrome (3218888123).

It can be divided in two parts, 100562 and 3122, that added together give a square (103684 = 322²).

The spelling of 1005623122 in words is "one billion, five million, six hundred twenty-three thousand, one hundred twenty-two".