135403453 has 4 divisors (see below), whose sum is σ = 143368380. Its totient is φ = 127438528.

The previous prime is 135403451. The next prime is 135403459. The reversal of 135403453 is 354304531.

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 126630009 + 8773444 = 11253^2 + 2962^2 .

It is not a de Polignac number, because 135403453 - 2¹ = 135403451 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 (135403451) 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 3 ways as a sum of consecutive naturals, for example, 3982438 + ... + 3982471.

It is an arithmetic number, because the mean of its divisors is an integer number (35842095).

Almost surely, 2^135403453 is an apocalyptic number.

It is an amenable number.

135403453 is a deficient number, since it is larger than the sum of its proper divisors (7964927).

135403453 is an equidigital number, since it uses as much as digits as its factorization.

135403453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7964926.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 135403453 is about 11636.2989390957. The cubic root of 135403453 is about 513.5033090435.

Adding to 135403453 its reverse (354304531), we get a palindrome (489707984).

The spelling of 135403453 in words is "one hundred thirty-five million, four hundred three thousand, four hundred fifty-three".