135815711 has 2 divisors, whose sum is σ = 135815712. Its totient is φ = 135815710.

The previous prime is 135815683. The next prime is 135815723. The reversal of 135815711 is 117518531.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135815711 - 2¹⁸ = 135553567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135815761) 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, 67907855 + 67907856.

It is an arithmetic number, because the mean of its divisors is an integer number (67907856).

Almost surely, 2^135815711 is an apocalyptic number.

135815711 is a deficient number, since it is larger than the sum of its proper divisors (1).

135815711 is an equidigital number, since it uses as much as digits as its factorization.

135815711 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4200, while the sum is 32.

The square root of 135815711 is about 11653.9997854814. Note that the first 3 decimals coincide. The cubic root of 135815711 is about 514.0239293517.

The spelling of 135815711 in words is "one hundred thirty-five million, eight hundred fifteen thousand, seven hundred eleven".