135511255 has 8 divisors (see below), whose sum is σ = 177396624. Its totient is φ = 98553600.

The previous prime is 135511241. The next prime is 135511289. The reversal of 135511255 is 552115531.

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

It is not a de Polignac number, because 135511255 - 2⁵ = 135511223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1231866 + ... + 1231975.

It is an arithmetic number, because the mean of its divisors is an integer number (22174578).

Almost surely, 2^135511255 is an apocalyptic number.

135511255 is a deficient number, since it is larger than the sum of its proper divisors (41885369).

135511255 is a wasteful number, since it uses less digits than its factorization.

135511255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2463857.

The product of its digits is 3750, while the sum is 28.

The square root of 135511255 is about 11640.9301604296. The cubic root of 135511255 is about 513.6395487976.

Adding to 135511255 its reverse (552115531), we get a palindrome (687626786).

The spelling of 135511255 in words is "one hundred thirty-five million, five hundred eleven thousand, two hundred fifty-five".