213336140 has 12 divisors (see below), whose sum is σ = 448005936. Its totient is φ = 85334448.

The previous prime is 213336121. The next prime is 213336157. The reversal of 213336140 is 41633312.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5333384 + ... + 5333423.

It is an arithmetic number, because the mean of its divisors is an integer number (37333828).

Almost surely, 2^213336140 is an apocalyptic number.

213336140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213336140 is an abundant number, since it is smaller than the sum of its proper divisors (234669796).

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

213336140 is a wasteful number, since it uses less digits than its factorization.

213336140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10666816 (or 10666814 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 213336140 is about 14606.0309461537. The cubic root of 213336140 is about 597.5232532397.

Adding to 213336140 its reverse (41633312), we get a palindrome (254969452).

The spelling of 213336140 in words is "two hundred thirteen million, three hundred thirty-six thousand, one hundred forty".