135205453 has 8 divisors (see below), whose sum is σ = 141154200. Its totient is φ = 129342528.

The previous prime is 135205451. The next prime is 135205457. The reversal of 135205453 is 354502531.

It can be written as a sum of positive squares in 4 ways, for example, as 9474084 + 125731369 = 3078^2 + 11213^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 135205453 - 2¹ = 135205451 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 (135205451) 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 7 ways as a sum of consecutive naturals, for example, 18226 + ... + 24547.

It is an arithmetic number, because the mean of its divisors is an integer number (17644275).

Almost surely, 2^135205453 is an apocalyptic number.

It is an amenable number.

135205453 is a deficient number, since it is larger than the sum of its proper divisors (5948747).

135205453 is a wasteful number, since it uses less digits than its factorization.

135205453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42911.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 135205453 is about 11627.7879667631. The cubic root of 135205453 is about 513.2528889047.

Adding to 135205453 its reverse (354502531), we get a palindrome (489707984).

The spelling of 135205453 in words is "one hundred thirty-five million, two hundred five thousand, four hundred fifty-three".