135800219 has 2 divisors, whose sum is σ = 135800220. Its totient is φ = 135800218.

The previous prime is 135800191. The next prime is 135800251. The reversal of 135800219 is 912008531.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135800219 is a prime.

It is a super-2 number, since 2×135800219² = 36883398960895922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 135800191 and 135800200.

It is not a weakly prime, because it can be changed into another prime (135800279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67900109 + 67900110.

It is an arithmetic number, because the mean of its divisors is an integer number (67900110).

Almost surely, 2^135800219 is an apocalyptic number.

135800219 is a deficient number, since it is larger than the sum of its proper divisors (1).

135800219 is an equidigital number, since it uses as much as digits as its factorization.

135800219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 135800219 is about 11653.3351020212. The cubic root of 135800219 is about 514.0043843338.

The spelling of 135800219 in words is "one hundred thirty-five million, eight hundred thousand, two hundred nineteen".