135502240 has 96 divisors (see below), whose sum is σ = 350106624. Its totient is φ = 49336320.

The previous prime is 135502193. The next prime is 135502247. The reversal of 135502240 is 42205531.

It is not an unprimeable number, because it can be changed into a prime (135502247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83517 + ... + 85123.

It is an arithmetic number, because the mean of its divisors is an integer number (3646944).

Almost surely, 2^135502240 is an apocalyptic number.

135502240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135502240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175053312).

135502240 is an abundant number, since it is smaller than the sum of its proper divisors (214604384).

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

135502240 is a wasteful number, since it uses less digits than its factorization.

135502240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670 (or 1662 counting only the distinct ones).

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

The square root of 135502240 is about 11640.5429426638. The cubic root of 135502240 is about 513.6281584443.

Adding to 135502240 its reverse (42205531), we get a palindrome (177707771).

The spelling of 135502240 in words is "one hundred thirty-five million, five hundred two thousand, two hundred forty".