136213216 has 48 divisors (see below), whose sum is σ = 274337280. Its totient is φ = 66559360.

The previous prime is 136213213. The next prime is 136213229. The reversal of 136213216 is 612312631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136213213) 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, 379245 + ... + 379603.

It is an arithmetic number, because the mean of its divisors is an integer number (5715360).

Almost surely, 2^136213216 is an apocalyptic number.

136213216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

136213216 is an abundant number, since it is smaller than the sum of its proper divisors (138124064).

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

136213216 is a wasteful number, since it uses less digits than its factorization.

136213216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607 (or 599 counting only the distinct ones).

The product of its digits is 1296, while the sum is 25.

The square root of 136213216 is about 11671.0417701249. The cubic root of 136213216 is about 514.5249221130.

Adding to 136213216 its reverse (612312631), we get a palindrome (748525847).

The spelling of 136213216 in words is "one hundred thirty-six million, two hundred thirteen thousand, two hundred sixteen".