4539188249 has 2 divisors, whose sum is σ = 4539188250. Its totient is φ = 4539188248.

The previous prime is 4539188221. The next prime is 4539188279. The reversal of 4539188249 is 9428819354.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3215683849 + 1323504400 = 56707^2 + 36380^2 .

It is a cyclic number.

It is not a de Polignac number, because 4539188249 - 2²⁰ = 4538139673 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4539188249.

It is not a weakly prime, because it can be changed into another prime (4539188219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2269594124 + 2269594125.

It is an arithmetic number, because the mean of its divisors is an integer number (2269594125).

Almost surely, 2^4539188249 is an apocalyptic number.

It is an amenable number.

4539188249 is a deficient number, since it is larger than the sum of its proper divisors (1).

4539188249 is an equidigital number, since it uses as much as digits as its factorization.

4539188249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2488320, while the sum is 53.

The square root of 4539188249 is about 67373.4981205518. The cubic root of 4539188249 is about 1655.7422517363.

The spelling of 4539188249 in words is "four billion, five hundred thirty-nine million, one hundred eighty-eight thousand, two hundred forty-nine".