135110421 has 24 divisors (see below), whose sum is σ = 201836544. Its totient is φ = 87026400.

The previous prime is 135110399. The next prime is 135110447. The reversal of 135110421 is 124011531.

135110421 is a `hidden beast` number, since 135 + 110 + 421 = 666.

It is not a de Polignac number, because 135110421 - 2⁵ = 135110389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135110394 and 135110403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135110491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48940 + ... + 51626.

It is an arithmetic number, because the mean of its divisors is an integer number (8409856).

Almost surely, 2^135110421 is an apocalyptic number.

It is an amenable number.

135110421 is a deficient number, since it is larger than the sum of its proper divisors (66726123).

135110421 is a wasteful number, since it uses less digits than its factorization.

135110421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2881 (or 2878 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 135110421 is about 11623.7008306305. The cubic root of 135110421 is about 513.1326105196.

Adding to 135110421 its reverse (124011531), we get a palindrome (259121952).

It can be divided in two parts, 135110 and 421, that added together give a palindrome (135531).

The spelling of 135110421 in words is "one hundred thirty-five million, one hundred ten thousand, four hundred twenty-one".