135004240 has 40 divisors (see below), whose sum is σ = 358727040. Its totient is φ = 46286976.

The previous prime is 135004223. The next prime is 135004241. The reversal of 135004240 is 42400531.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×135004240² = 36452289635955200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135004241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119980 + ... + 121099.

It is an arithmetic number, because the mean of its divisors is an integer number (8968176).

Almost surely, 2^135004240 is an apocalyptic number.

135004240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135004240 is an abundant number, since it is smaller than the sum of its proper divisors (223722800).

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

135004240 is a wasteful number, since it uses less digits than its factorization.

135004240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241099 (or 241093 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 135004240 is about 11619.1324977384. The cubic root of 135004240 is about 512.9981545379.

Adding to 135004240 its reverse (42400531), we get a palindrome (177404771).

The spelling of 135004240 in words is "one hundred thirty-five million, four thousand, two hundred forty".