1052006881 has 4 divisors (see below), whose sum is σ = 1052455572. Its totient is φ = 1051558192.

The previous prime is 1052006873. The next prime is 1052006939. The reversal of 1052006881 is 1886002501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 694796881 + 357210000 = 26359^2 + 18900^2 .

It is a cyclic number.

It is not a de Polignac number, because 1052006881 - 2³ = 1052006873 is a prime.

It is a super-2 number, since 2×1052006881² = 2213436955342696322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1052003881) 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 3 ways as a sum of consecutive naturals, for example, 220810 + ... + 225523.

It is an arithmetic number, because the mean of its divisors is an integer number (263113893).

Almost surely, 2^1052006881 is an apocalyptic number.

It is an amenable number.

1052006881 is a deficient number, since it is larger than the sum of its proper divisors (448691).

1052006881 is an equidigital number, since it uses as much as digits as its factorization.

1052006881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448690.

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 1052006881 is about 32434.6555554395. The cubic root of 1052006881 is about 1017.0434959757.

The spelling of 1052006881 in words is "one billion, fifty-two million, six thousand, eight hundred eighty-one".