135201205 has 4 divisors (see below), whose sum is σ = 162241452. Its totient is φ = 108160960.

The previous prime is 135201191. The next prime is 135201211. The reversal of 135201205 is 502102531.

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 52736644 + 82464561 = 7262^2 + 9081^2 .

It is not a de Polignac number, because 135201205 - 2⁵ = 135201173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 13520116 + ... + 13520125.

It is an arithmetic number, because the mean of its divisors is an integer number (40560363).

Almost surely, 2^135201205 is an apocalyptic number.

It is an amenable number.

135201205 is a deficient number, since it is larger than the sum of its proper divisors (27040247).

135201205 is an equidigital number, since it uses as much as digits as its factorization.

135201205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27040246.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 135201205 is about 11627.6052994587. The cubic root of 135201205 is about 513.2475135764.

Adding to 135201205 its reverse (502102531), we get a palindrome (637303736).

The spelling of 135201205 in words is "one hundred thirty-five million, two hundred one thousand, two hundred five".