135221083 has 2 divisors, whose sum is σ = 135221084. Its totient is φ = 135221082.

The previous prime is 135221063. The next prime is 135221087. The reversal of 135221083 is 380122531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135221083 - 2²⁵ = 101666651 is a prime.

It is not a weakly prime, because it can be changed into another prime (135221087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67610541 + 67610542.

It is an arithmetic number, because the mean of its divisors is an integer number (67610542).

Almost surely, 2^135221083 is an apocalyptic number.

135221083 is a deficient number, since it is larger than the sum of its proper divisors (1).

135221083 is an equidigital number, since it uses as much as digits as its factorization.

135221083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 135221083 is about 11628.4600442191. The cubic root of 135221083 is about 513.2726658032.

The spelling of 135221083 in words is "one hundred thirty-five million, two hundred twenty-one thousand, eighty-three".