213308536 has 16 divisors (see below), whose sum is σ = 457089840. Its totient is φ = 91417920.

The previous prime is 213308533. The next prime is 213308569. The reversal of 213308536 is 635803312.

It is a junction number, because it is equal to n+sod(n) for n = 213308498 and 213308507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213308533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1904485 + ... + 1904596.

It is an arithmetic number, because the mean of its divisors is an integer number (28568115).

Almost surely, 2^213308536 is an apocalyptic number.

It is an amenable number.

213308536 is an abundant number, since it is smaller than the sum of its proper divisors (243781304).

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

213308536 is a wasteful number, since it uses less digits than its factorization.

213308536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3809094 (or 3809090 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 213308536 is about 14605.0859634581. The cubic root of 213308536 is about 597.4974805424.

The spelling of 213308536 in words is "two hundred thirteen million, three hundred eight thousand, five hundred thirty-six".