208076137 has 2 divisors, whose sum is σ = 208076138. Its totient is φ = 208076136.

The previous prime is 208076129. The next prime is 208076177. The reversal of 208076137 is 731670802.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108555561 + 99520576 = 10419^2 + 9976^2 .

It is a cyclic number.

It is not a de Polignac number, because 208076137 - 2³ = 208076129 is a prime.

It is not a weakly prime, because it can be changed into another prime (208076177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104038068 + 104038069.

It is an arithmetic number, because the mean of its divisors is an integer number (104038069).

Almost surely, 2^208076137 is an apocalyptic number.

It is an amenable number.

208076137 is a deficient number, since it is larger than the sum of its proper divisors (1).

208076137 is an equidigital number, since it uses as much as digits as its factorization.

208076137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 208076137 is about 14424.8444359029. The cubic root of 208076137 is about 592.5714983122.

The spelling of 208076137 in words is "two hundred eight million, seventy-six thousand, one hundred thirty-seven".