135939059 has 2 divisors, whose sum is σ = 135939060. Its totient is φ = 135939058.

The previous prime is 135939019. The next prime is 135939079. The reversal of 135939059 is 950939531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135939059 - 2¹² = 135934963 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (135939019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67969529 + 67969530.

It is an arithmetic number, because the mean of its divisors is an integer number (67969530).

Almost surely, 2^135939059 is an apocalyptic number.

135939059 is a deficient number, since it is larger than the sum of its proper divisors (1).

135939059 is an equidigital number, since it uses as much as digits as its factorization.

135939059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 164025, while the sum is 44.

The square root of 135939059 is about 11659.2906731070. The cubic root of 135939059 is about 514.1794946600.

The spelling of 135939059 in words is "one hundred thirty-five million, nine hundred thirty-nine thousand, fifty-nine".