1030075021 has 8 divisors (see below), whose sum is σ = 1056364344. Its totient is φ = 1003841280.

The previous prime is 1030075009. The next prime is 1030075027. The reversal of 1030075021 is 1205700301.

It can be written as a sum of positive squares in 4 ways, for example, as 1590121 + 1028484900 = 1261^2 + 32070^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1030075021 - 2⁵ = 1030074989 is a prime.

It is a super-2 number, since 2×1030075021² = 2122109097776300882, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1030075021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030075027) 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, 25011 + ... + 51823.

It is an arithmetic number, because the mean of its divisors is an integer number (132045543).

Almost surely, 2^1030075021 is an apocalyptic number.

It is an amenable number.

1030075021 is a deficient number, since it is larger than the sum of its proper divisors (26289323).

1030075021 is an equidigital number, since it uses as much as digits as its factorization.

1030075021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27791.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 1030075021 is about 32094.7818344353. The cubic root of 1030075021 is about 1009.9261524937.

Adding to 1030075021 its reverse (1205700301), we get a palindrome (2235775322).

The spelling of 1030075021 in words is "one billion, thirty million, seventy-five thousand, twenty-one".