135543603 has 8 divisors (see below), whose sum is σ = 194626768. Its totient is φ = 83411424.

The previous prime is 135543589. The next prime is 135543619. The reversal of 135543603 is 306345531.

It is a happy number.

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

It is not a de Polignac number, because 135543603 - 2¹⁴ = 135527219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135543103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1737700 + ... + 1737777.

It is an arithmetic number, because the mean of its divisors is an integer number (24328346).

Almost surely, 2^135543603 is an apocalyptic number.

135543603 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

135543603 is a deficient number, since it is larger than the sum of its proper divisors (59083165).

135543603 is a wasteful number, since it uses less digits than its factorization.

135543603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3475493.

The product of its (nonzero) digits is 16200, while the sum is 30.

The square root of 135543603 is about 11642.3194853947. The cubic root of 135543603 is about 513.6804159817.

The spelling of 135543603 in words is "one hundred thirty-five million, five hundred forty-three thousand, six hundred three".