208283121 has 6 divisors (see below), whose sum is σ = 300853410. Its totient is φ = 138855408.

The previous prime is 208283107. The next prime is 208283123. The reversal of 208283121 is 121382802.

208283121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 206928225 + 1354896 = 14385^2 + 1164^2 .

It is not a de Polignac number, because 208283121 - 2¹⁸ = 208020977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (208283123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11571276 + ... + 11571293.

It is an arithmetic number, because the mean of its divisors is an integer number (50142235).

Almost surely, 2^208283121 is an apocalyptic number.

It is an amenable number.

208283121 is a deficient number, since it is larger than the sum of its proper divisors (92570289).

208283121 is a wasteful number, since it uses less digits than its factorization.

208283121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23142575 (or 23142572 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 208283121 is about 14432.0172186704. The cubic root of 208283121 is about 592.7679202783.

The spelling of 208283121 in words is "two hundred eight million, two hundred eighty-three thousand, one hundred twenty-one".