135205434 has 96 divisors (see below), whose sum is σ = 363242880. Its totient is φ = 35392896.

The previous prime is 135205429. The next prime is 135205451. The reversal of 135205434 is 434502531.

It is a junction number, because it is equal to n+sod(n) for n = 135205398 and 135205407.

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 47 ways as a sum of consecutive naturals, for example, 322477 + ... + 322895.

It is an arithmetic number, because the mean of its divisors is an integer number (3783780).

Almost surely, 2^135205434 is an apocalyptic number.

135205434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 135205434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181621440).

135205434 is an abundant number, since it is smaller than the sum of its proper divisors (228037446).

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

135205434 is a wasteful number, since it uses less digits than its factorization.

135205434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644 (or 641 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 135205434 is about 11627.7871497547. The cubic root of 135205434 is about 513.2528648627.

Adding to 135205434 its reverse (434502531), we get a palindrome (569707965).

The spelling of 135205434 in words is "one hundred thirty-five million, two hundred five thousand, four hundred thirty-four".