4243613145 has 16 divisors (see below), whose sum is σ = 6805995840. Its totient is φ = 2257855424.

The previous prime is 4243613141. The next prime is 4243613147. The reversal of 4243613145 is 5413163424.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 4243613145 - 2² = 4243613141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4243613141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 331314 + ... + 343883.

It is an arithmetic number, because the mean of its divisors is an integer number (425374740).

Almost surely, 2^4243613145 is an apocalyptic number.

It is an amenable number.

4243613145 is a deficient number, since it is larger than the sum of its proper divisors (2562382695).

4243613145 is a wasteful number, since it uses less digits than its factorization.

4243613145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675624.

The product of its digits is 34560, while the sum is 33.

The square root of 4243613145 is about 65143.0206929338. The cubic root of 4243613145 is about 1618.9940847879.

Adding to 4243613145 its reverse (5413163424), we get a palindrome (9656776569).

The spelling of 4243613145 in words is "four billion, two hundred forty-three million, six hundred thirteen thousand, one hundred forty-five".