4245544099 has 2 divisors, whose sum is σ = 4245544100. Its totient is φ = 4245544098.

The previous prime is 4245544097. The next prime is 4245544157. The reversal of 4245544099 is 9904455424.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4245544099 - 2¹ = 4245544097 is a prime.

Together with 4245544097, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4245544097) 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 as a sum of consecutive naturals, namely, 2122772049 + 2122772050.

It is an arithmetic number, because the mean of its divisors is an integer number (2122772050).

Almost surely, 2^4245544099 is an apocalyptic number.

4245544099 is a deficient number, since it is larger than the sum of its proper divisors (1).

4245544099 is an equidigital number, since it uses as much as digits as its factorization.

4245544099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1036800, while the sum is 46.

The square root of 4245544099 is about 65157.8398889957. The cubic root of 4245544099 is about 1619.2396089791.

The spelling of 4245544099 in words is "four billion, two hundred forty-five million, five hundred forty-four thousand, ninety-nine".