135166111 has 4 divisors (see below), whose sum is σ = 135947592. Its totient is φ = 134384632.

The previous prime is 135166093. The next prime is 135166121. The reversal of 135166111 is 111661531.

135166111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111661531 = 883 ⋅126457.

It is a cyclic number.

It is not a de Polignac number, because 135166111 - 2⁵ = 135166079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135166121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 390481 + ... + 390826.

It is an arithmetic number, because the mean of its divisors is an integer number (33986898).

Almost surely, 2^135166111 is an apocalyptic number.

135166111 is a deficient number, since it is larger than the sum of its proper divisors (781481).

135166111 is an equidigital number, since it uses as much as digits as its factorization.

135166111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781480.

The product of its digits is 540, while the sum is 25.

The square root of 135166111 is about 11626.0961203665. The cubic root of 135166111 is about 513.2031020715.

The spelling of 135166111 in words is "one hundred thirty-five million, one hundred sixty-six thousand, one hundred eleven".