135403303 has 16 divisors (see below), whose sum is σ = 157132800. Its totient is φ = 114285600.

The previous prime is 135403273. The next prime is 135403321. The reversal of 135403303 is 303304531.

It is a cyclic number.

It is not a de Polignac number, because 135403303 - 2⁹ = 135402791 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 (135403343) 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 15 ways as a sum of consecutive naturals, for example, 136138 + ... + 137128.

It is an arithmetic number, because the mean of its divisors is an integer number (9820800).

Almost surely, 2^135403303 is an apocalyptic number.

135403303 is a deficient number, since it is larger than the sum of its proper divisors (21729497).

135403303 is a wasteful number, since it uses less digits than its factorization.

135403303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278.

The product of its (nonzero) digits is 1620, while the sum is 22.

The square root of 135403303 is about 11636.2924937456. The cubic root of 135403303 is about 513.5031194237.

Adding to 135403303 its reverse (303304531), we get a palindrome (438707834).

The spelling of 135403303 in words is "one hundred thirty-five million, four hundred three thousand, three hundred three".