135513254205 has 32 divisors (see below), whose sum is σ = 275328518400. Its totient is φ = 61948915776.

The previous prime is 135513254189. The next prime is 135513254213. The reversal of 135513254205 is 502452315531.

135513254205 is a `hidden beast` number, since 1 + 3 + 551 + 32 + 54 + 20 + 5 = 666.

It is not a de Polignac number, because 135513254205 - 2⁴ = 135513254189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135513254205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71699190 + ... + 71701079.

It is an arithmetic number, because the mean of its divisors is an integer number (8604016200).

Almost surely, 2^135513254205 is an apocalyptic number.

135513254205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135513254205 is an abundant number, since it is smaller than the sum of its proper divisors (139815264195).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135513254205 is a wasteful number, since it uses less digits than its factorization.

135513254205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143400290 (or 143400284 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

Adding to 135513254205 its reverse (502452315531), we get a palindrome (637965569736).

The spelling of 135513254205 in words is "one hundred thirty-five billion, five hundred thirteen million, two hundred fifty-four thousand, two hundred five".