4543421145 has 16 divisors (see below), whose sum is σ = 7424144640. Its totient is φ = 2371601024.

The previous prime is 4543421123. The next prime is 4543421159. The reversal of 4543421145 is 5411243454.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 4543421145 - 2²¹ = 4541323993 is a prime.

It is a super-2 number, since 2×4543421145² = 41285351401666222050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3221580 + ... + 3222989.

It is an arithmetic number, because the mean of its divisors is an integer number (464009040).

Almost surely, 2^4543421145 is an apocalyptic number.

It is an amenable number.

4543421145 is a deficient number, since it is larger than the sum of its proper divisors (2880723495).

4543421145 is a wasteful number, since it uses less digits than its factorization.

4543421145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6444624.

The product of its digits is 38400, while the sum is 33.

The square root of 4543421145 is about 67404.9044580585. The cubic root of 4543421145 is about 1656.2567642396.

Adding to 4543421145 its reverse (5411243454), we get a palindrome (9954664599).

The spelling of 4543421145 in words is "four billion, five hundred forty-three million, four hundred twenty-one thousand, one hundred forty-five".