212630516 has 24 divisors (see below), whose sum is σ = 431254656. Its totient is φ = 89843040.

The previous prime is 212630497. The next prime is 212630521. The reversal of 212630516 is 615036212.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 51491 + ... + 55466.

It is an arithmetic number, because the mean of its divisors is an integer number (17968944).

Almost surely, 2^212630516 is an apocalyptic number.

It is an amenable number.

212630516 is an abundant number, since it is smaller than the sum of its proper divisors (218624140).

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

212630516 is a wasteful number, since it uses less digits than its factorization.

212630516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107039 (or 107037 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 212630516 is about 14581.8557118084. The cubic root of 212630516 is about 596.8637424519.

Adding to 212630516 its reverse (615036212), we get a palindrome (827666728).

The spelling of 212630516 in words is "two hundred twelve million, six hundred thirty thousand, five hundred sixteen".