1255135335 has 16 divisors (see below), whose sum is σ = 2011486176. Its totient is φ = 668315648.

The previous prime is 1255135333. The next prime is 1255135361. The reversal of 1255135335 is 5335315521.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1255135335 - 2¹ = 1255135333 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1255135296 and 1255135305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255135333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58554 + ... + 77063.

It is an arithmetic number, because the mean of its divisors is an integer number (125717886).

Almost surely, 2^1255135335 is an apocalyptic number.

1255135335 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1255135335 is a deficient number, since it is larger than the sum of its proper divisors (756350841).

1255135335 is a wasteful number, since it uses less digits than its factorization.

1255135335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136242.

The product of its digits is 33750, while the sum is 33.

The square root of 1255135335 is about 35427.8892258627. The cubic root of 1255135335 is about 1078.6904953377.

The spelling of 1255135335 in words is "one billion, two hundred fifty-five million, one hundred thirty-five thousand, three hundred thirty-five".