135500440 has 16 divisors (see below), whose sum is σ = 304876080. Its totient is φ = 54200160.

The previous prime is 135500371. The next prime is 135500461. The reversal of 135500440 is 44005531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1693716 + ... + 1693795.

It is an arithmetic number, because the mean of its divisors is an integer number (19054755).

Almost surely, 2^135500440 is an apocalyptic number.

135500440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135500440 is an abundant number, since it is smaller than the sum of its proper divisors (169375640).

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

135500440 is a wasteful number, since it uses less digits than its factorization.

135500440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3387522 (or 3387518 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 135500440 is about 11640.4656264258. The cubic root of 135500440 is about 513.6258841036.

Adding to 135500440 its reverse (44005531), we get a palindrome (179505971).

The spelling of 135500440 in words is "one hundred thirty-five million, five hundred thousand, four hundred forty".