135205404 has 24 divisors (see below), whose sum is σ = 318274320. Its totient is φ = 44669184.

The previous prime is 135205393. The next prime is 135205429. The reversal of 135205404 is 404502531.

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, 48499 + ... + 51210.

It is an arithmetic number, because the mean of its divisors is an integer number (13261430).

Almost surely, 2^135205404 is an apocalyptic number.

It is an amenable number.

135205404 is an abundant number, since it is smaller than the sum of its proper divisors (183068916).

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

135205404 is a wasteful number, since it uses less digits than its factorization.

135205404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99829 (or 99827 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 135205404 is about 11627.7858597413. The cubic root of 135205404 is about 513.2528269018.

Adding to 135205404 its reverse (404502531), we get a palindrome (539707935).

The spelling of 135205404 in words is "one hundred thirty-five million, two hundred five thousand, four hundred four".