135015255 has 80 divisors (see below), whose sum is σ = 254669184. Its totient is φ = 68359680.

The previous prime is 135015253. The next prime is 135015259. The reversal of 135015255 is 552510531.

135015255 is a `hidden beast` number, since 135 + 0 + 1 + 525 + 5 = 666.

It is not a de Polignac number, because 135015255 - 2¹ = 135015253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135015253) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 780349 + ... + 780521.

Almost surely, 2^135015255 is an apocalyptic number.

135015255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135015255 is a deficient number, since it is larger than the sum of its proper divisors (119653929).

135015255 is a wasteful number, since it uses less digits than its factorization.

135015255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 135015255 is about 11619.6064907552. The cubic root of 135015255 is about 513.0121060034.

Adding to 135015255 its reverse (552510531), we get a palindrome (687525786).

The spelling of 135015255 in words is "one hundred thirty-five million, fifteen thousand, two hundred fifty-five".