4212145243 has 8 divisors (see below), whose sum is σ = 4349030400. Its totient is φ = 4075323240.

The previous prime is 4212145211. The next prime is 4212145271. The reversal of 4212145243 is 3425412124.

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

It is not a de Polignac number, because 4212145243 - 2⁵ = 4212145211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4212145543) 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 7 ways as a sum of consecutive naturals, for example, 146358 + ... + 172756.

It is an arithmetic number, because the mean of its divisors is an integer number (543628800).

Almost surely, 2^4212145243 is an apocalyptic number.

4212145243 is a deficient number, since it is larger than the sum of its proper divisors (136885157).

4212145243 is a wasteful number, since it uses less digits than its factorization.

4212145243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31577.

The product of its digits is 7680, while the sum is 28.

The square root of 4212145243 is about 64901.0419253805. The cubic root of 4212145243 is about 1614.9823464221.

Adding to 4212145243 its reverse (3425412124), we get a palindrome (7637557367).

The spelling of 4212145243 in words is "four billion, two hundred twelve million, one hundred forty-five thousand, two hundred forty-three".