208225761 has 8 divisors (see below), whose sum is σ = 277838400. Its totient is φ = 138715152.

The previous prime is 208225723. The next prime is 208225763. The reversal of 208225761 is 167522802.

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

It is not a de Polignac number, because 208225761 - 2¹⁴ = 208209377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (208225763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20610 + ... + 29003.

It is an arithmetic number, because the mean of its divisors is an integer number (34729800).

Almost surely, 2^208225761 is an apocalyptic number.

It is an amenable number.

208225761 is a deficient number, since it is larger than the sum of its proper divisors (69612639).

208225761 is a wasteful number, since it uses less digits than its factorization.

208225761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51015.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 208225761 is about 14430.0298336490. The cubic root of 208225761 is about 592.7135002986.

The spelling of 208225761 in words is "two hundred eight million, two hundred twenty-five thousand, seven hundred sixty-one".