136216311 has 16 divisors (see below), whose sum is σ = 226437888. Its totient is φ = 70761600.

The previous prime is 136216279. The next prime is 136216349. The reversal of 136216311 is 113612631.

It is not a de Polignac number, because 136216311 - 2⁵ = 136216279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136216361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294610 + ... + 295071.

It is an arithmetic number, because the mean of its divisors is an integer number (14152368).

Almost surely, 2^136216311 is an apocalyptic number.

136216311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

136216311 is a deficient number, since it is larger than the sum of its proper divisors (90221577).

136216311 is a wasteful number, since it uses less digits than its factorization.

136216311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589702.

The product of its digits is 648, while the sum is 24.

The square root of 136216311 is about 11671.1743625053. The cubic root of 136216311 is about 514.5288190491.

Adding to 136216311 its reverse (113612631), we get a palindrome (249828942).

The spelling of 136216311 in words is "one hundred thirty-six million, two hundred sixteen thousand, three hundred eleven".