208023133 has 2 divisors, whose sum is σ = 208023134. Its totient is φ = 208023132.

The previous prime is 208023103. The next prime is 208023181. The reversal of 208023133 is 331320802.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156800484 + 51222649 = 12522^2 + 7157^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-208023133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (208023103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104011566 + 104011567.

It is an arithmetic number, because the mean of its divisors is an integer number (104011567).

Almost surely, 2^208023133 is an apocalyptic number.

It is an amenable number.

208023133 is a deficient number, since it is larger than the sum of its proper divisors (1).

208023133 is an equidigital number, since it uses as much as digits as its factorization.

208023133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 208023133 is about 14423.0070720360. The cubic root of 208023133 is about 592.5211780664.

Adding to 208023133 its reverse (331320802), we get a palindrome (539343935).

The spelling of 208023133 in words is "two hundred eight million, twenty-three thousand, one hundred thirty-three".