213596136 has 256 divisors, whose sum is σ = 687456000. Its totient is φ = 60963840.

The previous prime is 213596129. The next prime is 213596137. The reversal of 213596136 is 631695312.

213596136 is a `hidden beast` number, since 2 + 1 + 35 + 9 + 613 + 6 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 213596136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213596137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3501546 + ... + 3501606.

It is an arithmetic number, because the mean of its divisors is an integer number (2685375).

Almost surely, 2^213596136 is an apocalyptic number.

213596136 is a gapful number since it is divisible by the number (26) 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 213596136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (343728000).

213596136 is an abundant number, since it is smaller than the sum of its proper divisors (473859864).

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

213596136 is a wasteful number, since it uses less digits than its factorization.

213596136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 151 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 213596136 is about 14614.9285321551. The cubic root of 213596136 is about 597.7658915910.

It can be divided in two parts, 21359 and 6136, that added together give a triangular number (27495 = T₂₃₄).

The spelling of 213596136 in words is "two hundred thirteen million, five hundred ninety-six thousand, one hundred thirty-six".