1075512021 has 16 divisors (see below), whose sum is σ = 1520777664. Its totient is φ = 673761024.

The previous prime is 1075512019. The next prime is 1075512071. The reversal of 1075512021 is 1202155701.

It is not a de Polignac number, because 1075512021 - 2¹ = 1075512019 is a prime.

It is a super-2 number, since 2×1075512021² = 2313452214631008882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1075511982 and 1075512000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1075512071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16395 + ... + 49191.

It is an arithmetic number, because the mean of its divisors is an integer number (95048604).

Almost surely, 2^1075512021 is an apocalyptic number.

It is an amenable number.

1075512021 is a deficient number, since it is larger than the sum of its proper divisors (445265643).

1075512021 is a wasteful number, since it uses less digits than its factorization.

1075512021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33460.

The product of its (nonzero) digits is 700, while the sum is 24.

The square root of 1075512021 is about 32794.9999390151. Note that the first 4 decimals coincide. The cubic root of 1075512021 is about 1024.5624215105.

Adding to 1075512021 its reverse (1202155701), we get a palindrome (2277667722).

The spelling of 1075512021 in words is "one billion, seventy-five million, five hundred twelve thousand, twenty-one".