213000016 has 20 divisors (see below), whose sum is σ = 415321012. Its totient is φ = 105820416.

The previous prime is 213000001. The next prime is 213000017. The reversal of 213000016 is 610000312.

It can be written as a sum of positive squares in 2 ways, for example, as 135489600 + 77510416 = 11640^2 + 8804^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213000017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39885 + ... + 44908.

Almost surely, 2^213000016 is an apocalyptic number.

It is an amenable number.

213000016 is a deficient number, since it is larger than the sum of its proper divisors (202320996).

213000016 is a wasteful number, since it uses less digits than its factorization.

213000016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84958 (or 84952 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 213000016 is about 14594.5200674774. The cubic root of 213000016 is about 597.2092769362.

Adding to 213000016 its reverse (610000312), we get a palindrome (823000328).

The spelling of 213000016 in words is "two hundred thirteen million, sixteen", and thus it is an aban number.