2143622545 has 8 divisors (see below), whose sum is σ = 2572816896. Its totient is φ = 1714584816.

The previous prime is 2143622539. The next prime is 2143622567. The reversal of 2143622545 is 5452263412.

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

It is a cyclic number.

It is not a de Polignac number, because 2143622545 - 2¹¹ = 2143620497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2143622545.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6577 + ... + 65806.

It is an arithmetic number, because the mean of its divisors is an integer number (321602112).

Almost surely, 2^2143622545 is an apocalyptic number.

It is an amenable number.

2143622545 is a deficient number, since it is larger than the sum of its proper divisors (429194351).

2143622545 is an equidigital number, since it uses as much as digits as its factorization.

2143622545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78311.

The product of its digits is 57600, while the sum is 34.

The square root of 2143622545 is about 46299.2715385458. The cubic root of 2143622545 is about 1289.3854703723.

Adding to 2143622545 its reverse (5452263412), we get a palindrome (7595885957).

The spelling of 2143622545 in words is "two billion, one hundred forty-three million, six hundred twenty-two thousand, five hundred forty-five".