4045213243 has 4 divisors (see below), whose sum is σ = 4046329120. Its totient is φ = 4044097368.

The previous prime is 4045213229. The next prime is 4045213267. The reversal of 4045213243 is 3423125404.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4045213243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4045213043) 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, 552483 + ... + 559756.

It is an arithmetic number, because the mean of its divisors is an integer number (1011582280).

Almost surely, 2^4045213243 is an apocalyptic number.

4045213243 is a deficient number, since it is larger than the sum of its proper divisors (1115877).

4045213243 is a wasteful number, since it uses less digits than its factorization.

4045213243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115876.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 4045213243 is about 63601.9908729279. The cubic root of 4045213243 is about 1593.3596199871.

Adding to 4045213243 its reverse (3423125404), we get a palindrome (7468338647).

The spelling of 4045213243 in words is "four billion, forty-five million, two hundred thirteen thousand, two hundred forty-three".