1005210530 has 16 divisors (see below), whose sum is σ = 1853510904. Its totient is φ = 392277120.

The previous prime is 1005210529. The next prime is 1005210533. The reversal of 1005210530 is 350125001.

It can be written as a sum of positive squares in 4 ways, for example, as 570779881 + 434430649 = 23891^2 + 20843^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1005210499 and 1005210508.

It is not an unprimeable number, because it can be changed into a prime (1005210533) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1225457 + ... + 1226276.

Almost surely, 2^1005210530 is an apocalyptic number.

1005210530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1005210530 is a deficient number, since it is larger than the sum of its proper divisors (848300374).

1005210530 is a wasteful number, since it uses less digits than its factorization.

1005210530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2451781.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 1005210530 is about 31705.0552751450. The cubic root of 1005210530 is about 1001.7338354107.

Adding to 1005210530 its reverse (350125001), we get a palindrome (1355335531).

The spelling of 1005210530 in words is "one billion, five million, two hundred ten thousand, five hundred thirty".