135106405 has 8 divisors (see below), whose sum is σ = 185288832. Its totient is φ = 92644368.

The previous prime is 135106373. The next prime is 135106421. The reversal of 135106405 is 504601531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135106405 - 2⁵ = 135106373 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 135106405.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1930057 + ... + 1930126.

It is an arithmetic number, because the mean of its divisors is an integer number (23161104).

Almost surely, 2^135106405 is an apocalyptic number.

It is an amenable number.

135106405 is a deficient number, since it is larger than the sum of its proper divisors (50182427).

135106405 is an equidigital number, since it uses as much as digits as its factorization.

135106405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3860195.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 135106405 is about 11623.5280788580. The cubic root of 135106405 is about 513.1275263794.

Adding to 135106405 its reverse (504601531), we get a palindrome (639707936).

The spelling of 135106405 in words is "one hundred thirty-five million, one hundred six thousand, four hundred five".