135104240 has 20 divisors (see below), whose sum is σ = 314117544. Its totient is φ = 54041664.

The previous prime is 135104201. The next prime is 135104297. The reversal of 135104240 is 42401531.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 844322 + ... + 844481.

Almost surely, 2^135104240 is an apocalyptic number.

135104240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135104240 is an abundant number, since it is smaller than the sum of its proper divisors (179013304).

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

135104240 is a wasteful number, since it uses less digits than its factorization.

135104240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688816 (or 1688810 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 135104240 is about 11623.4349484135. The cubic root of 135104240 is about 513.1247855100.

Adding to 135104240 its reverse (42401531), we get a palindrome (177505771).

The spelling of 135104240 in words is "one hundred thirty-five million, one hundred four thousand, two hundred forty".