208480261 has 8 divisors (see below), whose sum is σ = 229686048. Its totient is φ = 187650000.

The previous prime is 208480253. The next prime is 208480273. The reversal of 208480261 is 162084802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 208480261 - 2³ = 208480253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208480241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92715 + ... + 94936.

It is an arithmetic number, because the mean of its divisors is an integer number (28710756).

Almost surely, 2^208480261 is an apocalyptic number.

It is an amenable number.

208480261 is a deficient number, since it is larger than the sum of its proper divisors (21205787).

208480261 is a wasteful number, since it uses less digits than its factorization.

208480261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187763.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 208480261 is about 14438.8455563456. The cubic root of 208480261 is about 592.9548796085.

The spelling of 208480261 in words is "two hundred eight million, four hundred eighty thousand, two hundred sixty-one".