135855711 has 28 divisors (see below), whose sum is σ = 205160472. Its totient is φ = 89917776.

The previous prime is 135855703. The next prime is 135855737. The reversal of 135855711 is 117558531.

135855711 is a `hidden beast` number, since 1 + 3 + 5 + 85 + 571 + 1 = 666.

It is not a de Polignac number, because 135855711 - 2³ = 135855703 is a prime.

It is a super-2 number, since 2×135855711² = 36913548422631042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135855751) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 113860 + ... + 115046.

Almost surely, 2^135855711 is an apocalyptic number.

135855711 is a deficient number, since it is larger than the sum of its proper divisors (69304761).

135855711 is an equidigital number, since it uses as much as digits as its factorization.

135855711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362 (or 1347 counting only the distinct ones).

The product of its digits is 21000, while the sum is 36.

The square root of 135855711 is about 11655.7158081347. The cubic root of 135855711 is about 514.0743872819.

The spelling of 135855711 in words is "one hundred thirty-five million, eight hundred fifty-five thousand, seven hundred eleven".