213356136 has 128 divisors (see below), whose sum is σ = 639221760. Its totient is φ = 58060800.

The previous prime is 213356131. The next prime is 213356147. The reversal of 213356136 is 631653312.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (213356131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 369480 + ... + 370056.

It is an arithmetic number, because the mean of its divisors is an integer number (4993920).

Almost surely, 2^213356136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213356136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (319610880).

213356136 is an abundant number, since it is smaller than the sum of its proper divisors (425865624).

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

213356136 is a wasteful number, since it uses less digits than its factorization.

213356136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695 (or 691 counting only the distinct ones).

The product of its digits is 9720, while the sum is 30.

The square root of 213356136 is about 14606.7154418781. The cubic root of 213356136 is about 597.5419212780.

The spelling of 213356136 in words is "two hundred thirteen million, three hundred fifty-six thousand, one hundred thirty-six".