2143441145 has 8 divisors (see below), whose sum is σ = 2583362760. Its totient is φ = 1707264000.

The previous prime is 2143441133. The next prime is 2143441171. The reversal of 2143441145 is 5411443412.

It can be written as a sum of positive squares in 4 ways, for example, as 931287289 + 1212153856 = 30517^2 + 34816^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2143441145 - 2¹⁶ = 2143375609 is a prime.

It is a super-3 number, since 3×2143441145³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 934856 + ... + 937145.

It is an arithmetic number, because the mean of its divisors is an integer number (322920345).

Almost surely, 2^2143441145 is an apocalyptic number.

It is an amenable number.

2143441145 is a deficient number, since it is larger than the sum of its proper divisors (439921615).

2143441145 is a wasteful number, since it uses less digits than its factorization.

2143441145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1872235.

The product of its digits is 7680, while the sum is 29.

The square root of 2143441145 is about 46297.3125029952. The cubic root of 2143441145 is about 1289.3490987447.

Adding to 2143441145 its reverse (5411443412), we get a palindrome (7554884557).

The spelling of 2143441145 in words is "two billion, one hundred forty-three million, four hundred forty-one thousand, one hundred forty-five".