208460513 has 2 divisors, whose sum is σ = 208460514. Its totient is φ = 208460512.

The previous prime is 208460509. The next prime is 208460543. The reversal of 208460513 is 315064802.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121374289 + 87086224 = 11017^2 + 9332^2 .

It is a cyclic number.

It is not a de Polignac number, because 208460513 - 2² = 208460509 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (208460543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104230256 + 104230257.

It is an arithmetic number, because the mean of its divisors is an integer number (104230257).

Almost surely, 2^208460513 is an apocalyptic number.

It is an amenable number.

208460513 is a deficient number, since it is larger than the sum of its proper divisors (1).

208460513 is an equidigital number, since it uses as much as digits as its factorization.

208460513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 208460513 is about 14438.1616904646. The cubic root of 208460513 is about 592.9361567445.

The spelling of 208460513 in words is "two hundred eight million, four hundred sixty thousand, five hundred thirteen".