135768811 has 2 divisors, whose sum is σ = 135768812. Its totient is φ = 135768810.

The previous prime is 135768797. The next prime is 135768821. The reversal of 135768811 is 118867531.

It is a strong prime.

It is an emirp because it is prime and its reverse (118867531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135768811 - 2⁷ = 135768683 is a prime.

It is not a weakly prime, because it can be changed into another prime (135768821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67884405 + 67884406.

It is an arithmetic number, because the mean of its divisors is an integer number (67884406).

Almost surely, 2^135768811 is an apocalyptic number.

135768811 is a deficient number, since it is larger than the sum of its proper divisors (1).

135768811 is an equidigital number, since it uses as much as digits as its factorization.

135768811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 40.

The square root of 135768811 is about 11651.9874270444. The cubic root of 135768811 is about 513.9647548090.

The spelling of 135768811 in words is "one hundred thirty-five million, seven hundred sixty-eight thousand, eight hundred eleven".