135878033 has 2 divisors, whose sum is σ = 135878034. Its totient is φ = 135878032.

The previous prime is 135878009. The next prime is 135878051. The reversal of 135878033 is 330878531.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68178049 + 67699984 = 8257^2 + 8228^2 .

It is a cyclic number.

It is not a de Polignac number, because 135878033 - 2¹⁰ = 135877009 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (135878233) 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, 67939016 + 67939017.

It is an arithmetic number, because the mean of its divisors is an integer number (67939017).

Almost surely, 2^135878033 is an apocalyptic number.

It is an amenable number.

135878033 is a deficient number, since it is larger than the sum of its proper divisors (1).

135878033 is an equidigital number, since it uses as much as digits as its factorization.

135878033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 135878033 is about 11656.6733247527. The cubic root of 135878033 is about 514.1025410242.

The spelling of 135878033 in words is "one hundred thirty-five million, eight hundred seventy-eight thousand, thirty-three".