135203241 has 8 divisors (see below), whose sum is σ = 182810304. Its totient is φ = 88865840.

The previous prime is 135203209. The next prime is 135203251. The reversal of 135203241 is 142302531.

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 135203241 - 2⁵ = 135203209 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (135203251) 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, 317166 + ... + 317591.

It is an arithmetic number, because the mean of its divisors is an integer number (22851288).

Almost surely, 2^135203241 is an apocalyptic number.

It is an amenable number.

135203241 is a deficient number, since it is larger than the sum of its proper divisors (47607063).

135203241 is an equidigital number, since it uses as much as digits as its factorization.

135203241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634831.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 135203241 is about 11627.6928494005. The cubic root of 135203241 is about 513.2500899013.

Adding to 135203241 its reverse (142302531), we get a palindrome (277505772).

It can be divided in two parts, 13520 and 3241, that added together give a palindrome (16761).

The spelling of 135203241 in words is "one hundred thirty-five million, two hundred three thousand, two hundred forty-one".