208126845 has 24 divisors (see below), whose sum is σ = 361179000. Its totient is φ = 110870016.

The previous prime is 208126829. The next prime is 208126859. The reversal of 208126845 is 548621802.

It can be written as a sum of positive squares in 4 ways, for example, as 18844281 + 189282564 = 4341^2 + 13758^2 .

It is not a de Polignac number, because 208126845 - 2⁴ = 208126829 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 (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45001 + ... + 49409.

It is an arithmetic number, because the mean of its divisors is an integer number (15049125).

Almost surely, 2^208126845 is an apocalyptic number.

It is an amenable number.

208126845 is a deficient number, since it is larger than the sum of its proper divisors (153052155).

208126845 is a wasteful number, since it uses less digits than its factorization.

208126845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5469 (or 5466 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 208126845 is about 14426.6019907669. The cubic root of 208126845 is about 592.6196308137.

The spelling of 208126845 in words is "two hundred eight million, one hundred twenty-six thousand, eight hundred forty-five".