135331811 has 2 divisors, whose sum is σ = 135331812. Its totient is φ = 135331810.

The previous prime is 135331799. The next prime is 135331817. The reversal of 135331811 is 118133531.

It is a strong prime.

It is an emirp because it is prime and its reverse (118133531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135331811 - 2¹⁸ = 135069667 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (135331817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67665905 + 67665906.

It is an arithmetic number, because the mean of its divisors is an integer number (67665906).

Almost surely, 2^135331811 is an apocalyptic number.

135331811 is a deficient number, since it is larger than the sum of its proper divisors (1).

135331811 is an equidigital number, since it uses as much as digits as its factorization.

135331811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 26.

The square root of 135331811 is about 11633.2201474914. The cubic root of 135331811 is about 513.4127281575.

The spelling of 135331811 in words is "one hundred thirty-five million, three hundred thirty-one thousand, eight hundred eleven".