135081253 has 4 divisors (see below), whose sum is σ = 135186700. Its totient is φ = 134975808.

The previous prime is 135081251. The next prime is 135081281. The reversal of 135081253 is 352180531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 129800449 + 5280804 = 11393^2 + 2298^2 .

It is a cyclic number.

It is not a de Polignac number, because 135081253 - 2¹ = 135081251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135081251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50778 + ... + 53371.

It is an arithmetic number, because the mean of its divisors is an integer number (33796675).

Almost surely, 2^135081253 is an apocalyptic number.

It is an amenable number.

135081253 is a deficient number, since it is larger than the sum of its proper divisors (105447).

135081253 is a wasteful number, since it uses less digits than its factorization.

135081253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105446.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 135081253 is about 11622.4460850546. The cubic root of 135081253 is about 513.0956823808.

The spelling of 135081253 in words is "one hundred thirty-five million, eighty-one thousand, two hundred fifty-three".