1050443681 has 4 divisors (see below), whose sum is σ = 1200507072. Its totient is φ = 900380292.

The previous prime is 1050443677. The next prime is 1050443701. The reversal of 1050443681 is 1863440501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1050443681 - 2² = 1050443677 is a prime.

It is a super-2 number, since 2×1050443681² = 2206863853905659522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1050443881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75031685 + ... + 75031698.

It is an arithmetic number, because the mean of its divisors is an integer number (300126768).

Almost surely, 2^1050443681 is an apocalyptic number.

It is an amenable number.

1050443681 is a deficient number, since it is larger than the sum of its proper divisors (150063391).

1050443681 is an equidigital number, since it uses as much as digits as its factorization.

1050443681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150063390.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 1050443681 is about 32410.5489154380. The cubic root of 1050443681 is about 1016.5394972114.

The spelling of 1050443681 in words is "one billion, fifty million, four hundred forty-three thousand, six hundred eighty-one".