208056461 has 4 divisors (see below), whose sum is σ = 208300092. Its totient is φ = 207812832.

The previous prime is 208056419. The next prime is 208056467. The reversal of 208056461 is 164650802.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 173317225 + 34739236 = 13165^2 + 5894^2 .

It is a cyclic number.

It is not a de Polignac number, because 208056461 - 2⁶ = 208056397 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 (208056467) 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 3 ways as a sum of consecutive naturals, for example, 120530 + ... + 122243.

It is an arithmetic number, because the mean of its divisors is an integer number (52075023).

Almost surely, 2^208056461 is an apocalyptic number.

It is an amenable number.

208056461 is a deficient number, since it is larger than the sum of its proper divisors (243631).

208056461 is an equidigital number, since it uses as much as digits as its factorization.

208056461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243630.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 208056461 is about 14424.1624020253. The cubic root of 208056461 is about 592.5528195655.

The spelling of 208056461 in words is "two hundred eight million, fifty-six thousand, four hundred sixty-one".