136683216 has 120 divisors (see below), whose sum is σ = 401633024. Its totient is φ = 43338240.

The previous prime is 136683187. The next prime is 136683241. The reversal of 136683216 is 612386631.

136683216 is a `hidden beast` number, since 1 + 366 + 83 + 216 = 666.

It is a super-2 number, since 2×136683216² = 37364603072205312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 298860 + ... + 299316.

Almost surely, 2^136683216 is an apocalyptic number.

136683216 is a gapful number since it is divisible by the number (16) 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 136683216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200816512).

136683216 is an abundant number, since it is smaller than the sum of its proper divisors (264949808).

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

136683216 is a wasteful number, since it uses less digits than its factorization.

136683216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569 (or 560 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 136683216 is about 11691.1597371689. The cubic root of 136683216 is about 515.1160275226.

The spelling of 136683216 in words is "one hundred thirty-six million, six hundred eighty-three thousand, two hundred sixteen".