135205444 has 24 divisors (see below), whose sum is σ = 271706400. Its totient is φ = 58222080.

The previous prime is 135205429. The next prime is 135205451. The reversal of 135205444 is 444502531.

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, 80029 + ... + 81700.

It is an arithmetic number, because the mean of its divisors is an integer number (11321100).

Almost surely, 2^135205444 is an apocalyptic number.

It is an amenable number.

135205444 is an abundant number, since it is smaller than the sum of its proper divisors (136500956).

135205444 is a wasteful number, since it uses less digits than its factorization.

135205444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161763 (or 161761 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 135205444 is about 11627.7875797591. The cubic root of 135205444 is about 513.2528775164.

Adding to 135205444 its reverse (444502531), we get a palindrome (579707975).

The spelling of 135205444 in words is "one hundred thirty-five million, two hundred five thousand, four hundred forty-four".