135255405 has 8 divisors (see below), whose sum is σ = 216408672. Its totient is φ = 72136208.

The previous prime is 135255371. The next prime is 135255409. The reversal of 135255405 is 504552531.

It is a happy number.

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 135255405 - 2⁸ = 135255149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135255409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4508499 + ... + 4508528.

It is an arithmetic number, because the mean of its divisors is an integer number (27051084).

Almost surely, 2^135255405 is an apocalyptic number.

135255405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135255405 is a deficient number, since it is larger than the sum of its proper divisors (81153267).

135255405 is an equidigital number, since it uses as much as digits as its factorization.

135255405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9017035.

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 135255405 is about 11629.9357263916. The cubic root of 135255405 is about 513.3160886525.

The spelling of 135255405 in words is "one hundred thirty-five million, two hundred fifty-five thousand, four hundred five".