135340216 has 64 divisors (see below), whose sum is σ = 288943200. Its totient is φ = 58867200.

The previous prime is 135340207. The next prime is 135340229. The reversal of 135340216 is 612043531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 461766 + ... + 462058.

Almost surely, 2^135340216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135340216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144471600).

135340216 is an abundant number, since it is smaller than the sum of its proper divisors (153602984).

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

135340216 is a wasteful number, since it uses less digits than its factorization.

135340216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520 (or 516 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 135340216 is about 11633.5813918157. The cubic root of 135340216 is about 513.4233567122.

Adding to 135340216 its reverse (612043531), we get a palindrome (747383747).

The spelling of 135340216 in words is "one hundred thirty-five million, three hundred forty thousand, two hundred sixteen".