135616216 has 8 divisors (see below), whose sum is σ = 254280420. Its totient is φ = 67808104.

The previous prime is 135616193. The next prime is 135616249. The reversal of 135616216 is 612616531.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8476006 + ... + 8476021.

Almost surely, 2^135616216 is an apocalyptic number.

It is an amenable number.

135616216 is a deficient number, since it is larger than the sum of its proper divisors (118664204).

135616216 is a wasteful number, since it uses less digits than its factorization.

135616216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16952033 (or 16952029 counting only the distinct ones).

The product of its digits is 6480, while the sum is 31.

The square root of 135616216 is about 11645.4375615517. The cubic root of 135616216 is about 513.7721287011.

The spelling of 135616216 in words is "one hundred thirty-five million, six hundred sixteen thousand, two hundred sixteen".