135911216 has 40 divisors (see below), whose sum is σ = 307361280. Its totient is φ = 57006144.

The previous prime is 135911213. The next prime is 135911221. The reversal of 135911216 is 612119531.

It is not an unprimeable number, because it can be changed into a prime (135911213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7646 + ... + 18173.

It is an arithmetic number, because the mean of its divisors is an integer number (7684032).

Almost surely, 2^135911216 is an apocalyptic number.

135911216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

135911216 is an abundant number, since it is smaller than the sum of its proper divisors (171450064).

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

135911216 is a wasteful number, since it uses less digits than its factorization.

135911216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25881 (or 25875 counting only the distinct ones).

The product of its digits is 1620, while the sum is 29.

The square root of 135911216 is about 11658.0965856352. The cubic root of 135911216 is about 514.1443875629.

The spelling of 135911216 in words is "one hundred thirty-five million, nine hundred eleven thousand, two hundred sixteen".