135203147 has 4 divisors (see below), whose sum is σ = 135463176. Its totient is φ = 134943120.

The previous prime is 135203141. The next prime is 135203149. The reversal of 135203147 is 741302531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 135203147 - 2¹⁸ = 134941003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135203141) 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 3 ways as a sum of consecutive naturals, for example, 129233 + ... + 130274.

It is an arithmetic number, because the mean of its divisors is an integer number (33865794).

Almost surely, 2^135203147 is an apocalyptic number.

135203147 is a deficient number, since it is larger than the sum of its proper divisors (260029).

135203147 is an equidigital number, since it uses as much as digits as its factorization.

135203147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260028.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 135203147 is about 11627.6888073254. The cubic root of 135203147 is about 513.2499709556.

Adding to 135203147 its reverse (741302531), we get a palindrome (876505678).

The spelling of 135203147 in words is "one hundred thirty-five million, two hundred three thousand, one hundred forty-seven".