2152243043 has 4 divisors (see below), whose sum is σ = 2152490088. Its totient is φ = 2151996000.

The previous prime is 2152243019. The next prime is 2152243073. The reversal of 2152243043 is 3403422512.

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

It is a cyclic number.

It is not a de Polignac number, because 2152243043 - 2⁶ = 2152242979 is a prime.

It is a super-2 number, since 2×2152243043² = 9264300232283799698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2152243073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109958 + ... + 128043.

It is an arithmetic number, because the mean of its divisors is an integer number (538122522).

Almost surely, 2^2152243043 is an apocalyptic number.

2152243043 is a deficient number, since it is larger than the sum of its proper divisors (247045).

2152243043 is an equidigital number, since it uses as much as digits as its factorization.

2152243043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247044.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 2152243043 is about 46392.2735269571. The cubic root of 2152243043 is about 1291.1115637992. Note that the first 3 decimals are identical.

Adding to 2152243043 its reverse (3403422512), we get a palindrome (5555665555).

It can be divided in two parts, 21522 and 43043, that multiplied together give a triangular number (926371446 = T₄₃₀₄₃).

The spelling of 2152243043 in words is "two billion, one hundred fifty-two million, two hundred forty-three thousand, forty-three".