2150021443 has 4 divisors (see below), whose sum is σ = 2150116200. Its totient is φ = 2149926688.

The previous prime is 2150021431. The next prime is 2150021449. The reversal of 2150021443 is 3441200512.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2150021443 - 2⁵ = 2150021411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2150021449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9096 + ... + 66202.

It is an arithmetic number, because the mean of its divisors is an integer number (537529050).

Almost surely, 2^2150021443 is an apocalyptic number.

2150021443 is a deficient number, since it is larger than the sum of its proper divisors (94757).

2150021443 is an equidigital number, since it uses as much as digits as its factorization.

2150021443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94756.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2150021443 is about 46368.3237027176. The cubic root of 2150021443 is about 1290.6671714635.

Adding to 2150021443 its reverse (3441200512), we get a palindrome (5591221955).

The spelling of 2150021443 in words is "two billion, one hundred fifty million, twenty-one thousand, four hundred forty-three".