4251322045 has 4 divisors (see below), whose sum is σ = 5101586460. Its totient is φ = 3401057632.

The previous prime is 4251321931. The next prime is 4251322081. The reversal of 4251322045 is 5402231524.

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

It can be written as a sum of positive squares in 2 ways, for example, as 788823396 + 3462498649 = 28086^2 + 58843^2 .

It is a cyclic number.

It is not a de Polignac number, because 4251322045 - 2²³ = 4242933437 is a prime.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 425132200 + ... + 425132209.

It is an arithmetic number, because the mean of its divisors is an integer number (1275396615).

Almost surely, 2^4251322045 is an apocalyptic number.

It is an amenable number.

4251322045 is a deficient number, since it is larger than the sum of its proper divisors (850264415).

4251322045 is an equidigital number, since it uses as much as digits as its factorization.

4251322045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850264414.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 4251322045 is about 65202.1628859043. The cubic root of 4251322045 is about 1619.9738405825.

Adding to 4251322045 its reverse (5402231524), we get a palindrome (9653553569).

The spelling of 4251322045 in words is "four billion, two hundred fifty-one million, three hundred twenty-two thousand, forty-five".