208965249 has 12 divisors (see below), whose sum is σ = 317725200. Its totient is φ = 131977944.

The previous prime is 208965247. The next prime is 208965277. The reversal of 208965249 is 942569802.

It is not a de Polignac number, because 208965249 - 2¹ = 208965247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (208965247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 610839 + ... + 611180.

It is an arithmetic number, because the mean of its divisors is an integer number (26477100).

Almost surely, 2^208965249 is an apocalyptic number.

It is an amenable number.

208965249 is a deficient number, since it is larger than the sum of its proper divisors (108759951).

208965249 is a wasteful number, since it uses less digits than its factorization.

208965249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222044 (or 1222041 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 208965249 is about 14455.6303563698. The cubic root of 208965249 is about 593.4143208546.

The spelling of 208965249 in words is "two hundred eight million, nine hundred sixty-five thousand, two hundred forty-nine".