1255135 has 24 divisors (see below), whose sum is σ = 1805760. Its totient is φ = 834624.

The previous prime is 1255129. The next prime is 1255139. The reversal of 1255135 is 5315521.

It is not a de Polignac number, because 1255135 - 2⁵ = 1255103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255139) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 11461 + ... + 11569.

It is an arithmetic number, because the mean of its divisors is an integer number (75240).

2^1255135 is an apocalyptic number.

1255135 is a deficient number, since it is larger than the sum of its proper divisors (550625).

1255135 is a wasteful number, since it uses less digits than its factorization.

1255135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175 (or 168 counting only the distinct ones).

The product of its digits is 750, while the sum is 22.

The square root of 1255135 is about 1120.3280769489. The cubic root of 1255135 is about 107.8690399369.

The spelling of 1255135 in words is "one million, two hundred fifty-five thousand, one hundred thirty-five".