208575541 has 2 divisors, whose sum is σ = 208575542. Its totient is φ = 208575540.

The previous prime is 208575509. The next prime is 208575551. The reversal of 208575541 is 145575802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196700625 + 11874916 = 14025^2 + 3446^2 .

It is a cyclic number.

It is not a de Polignac number, because 208575541 - 2⁵ = 208575509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 208575541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (208575551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104287770 + 104287771.

It is an arithmetic number, because the mean of its divisors is an integer number (104287771).

Almost surely, 2^208575541 is an apocalyptic number.

It is an amenable number.

208575541 is a deficient number, since it is larger than the sum of its proper divisors (1).

208575541 is an equidigital number, since it uses as much as digits as its factorization.

208575541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56000, while the sum is 37.

The square root of 208575541 is about 14442.1446122105. The cubic root of 208575541 is about 593.0451969301.

The spelling of 208575541 in words is "two hundred eight million, five hundred seventy-five thousand, five hundred forty-one".