135067591 has 2 divisors, whose sum is σ = 135067592. Its totient is φ = 135067590.

The previous prime is 135067577. The next prime is 135067619. The reversal of 135067591 is 195760531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135067591 - 2⁷ = 135067463 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135067591.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135067531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67533795 + 67533796.

It is an arithmetic number, because the mean of its divisors is an integer number (67533796).

Almost surely, 2^135067591 is an apocalyptic number.

135067591 is a deficient number, since it is larger than the sum of its proper divisors (1).

135067591 is an equidigital number, since it uses as much as digits as its factorization.

135067591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28350, while the sum is 37.

The square root of 135067591 is about 11621.8583281677. The cubic root of 135067591 is about 513.0783837811.

The spelling of 135067591 in words is "one hundred thirty-five million, sixty-seven thousand, five hundred ninety-one".