135405205230 has 16 divisors (see below), whose sum is σ = 324972492624. Its totient is φ = 36108054720.

The previous prime is 135405205189. The next prime is 135405205253. The reversal of 135405205230 is 32502504531.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 4513506841 = 135405205230 / (1 + 3 + 5 + 4 + 0 + 5 + 2 + 0 + 5 + 2 + 3 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2256753391 + ... + 2256753450.

It is an arithmetic number, because the mean of its divisors is an integer number (20310780789).

Almost surely, 2^135405205230 is an apocalyptic number.

135405205230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135405205230 is an abundant number, since it is smaller than the sum of its proper divisors (189567287394).

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

135405205230 is a wasteful number, since it uses less digits than its factorization.

135405205230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4513506851.

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 135405205230 its reverse (32502504531), we get a palindrome (167907709761).

The spelling of 135405205230 in words is "one hundred thirty-five billion, four hundred five million, two hundred five thousand, two hundred thirty".