4145056243 has 4 divisors (see below), whose sum is σ = 4145255928. Its totient is φ = 4144856560.

The previous prime is 4145056241. The next prime is 4145056291. The reversal of 4145056243 is 3426505414.

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 4145056243 - 2¹ = 4145056241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4145056199 and 4145056208.

It is not an unprimeable number, because it can be changed into a prime (4145056241) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 64546 + ... + 111607.

It is an arithmetic number, because the mean of its divisors is an integer number (1036313982).

Almost surely, 2^4145056243 is an apocalyptic number.

4145056243 is a deficient number, since it is larger than the sum of its proper divisors (199685).

4145056243 is a wasteful number, since it uses less digits than its factorization.

4145056243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199684.

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

The square root of 4145056243 is about 64382.1112033459. Note that the first 3 decimals coincide. The cubic root of 4145056243 is about 1606.3621996185.

The spelling of 4145056243 in words is "four billion, one hundred forty-five million, fifty-six thousand, two hundred forty-three".