135117240 has 64 divisors (see below), whose sum is σ = 406490400. Its totient is φ = 35930112.

The previous prime is 135117221. The next prime is 135117253. The reversal of 135117240 is 42711531.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 135117240.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47704 + ... + 50456.

Almost surely, 2^135117240 is an apocalyptic number.

135117240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135117240 is an abundant number, since it is smaller than the sum of its proper divisors (271373160).

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

135117240 is a wasteful number, since it uses less digits than its factorization.

135117240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3176 (or 3172 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 135117240 is about 11623.9941500329. The cubic root of 135117240 is about 513.1412429463.

Adding to 135117240 its reverse (42711531), we get a palindrome (177828771).

The spelling of 135117240 in words is "one hundred thirty-five million, one hundred seventeen thousand, two hundred forty".