135844111 has 16 divisors (see below), whose sum is σ = 150560928. Its totient is φ = 121766400.

The previous prime is 135844109. The next prime is 135844151. The reversal of 135844111 is 111448531.

It is a cyclic number.

It is not a de Polignac number, because 135844111 - 2¹ = 135844109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135844111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135844151) 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 in 15 ways as a sum of consecutive naturals, for example, 149320 + ... + 150226.

It is an arithmetic number, because the mean of its divisors is an integer number (9410058).

Almost surely, 2^135844111 is an apocalyptic number.

135844111 is a deficient number, since it is larger than the sum of its proper divisors (14716817).

135844111 is a wasteful number, since it uses less digits than its factorization.

135844111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242.

The product of its digits is 1920, while the sum is 28.

The square root of 135844111 is about 11655.2181875759. The cubic root of 135844111 is about 514.0597555019.

The spelling of 135844111 in words is "one hundred thirty-five million, eight hundred forty-four thousand, one hundred eleven".