105215316 has 12 divisors (see below), whose sum is σ = 245502432. Its totient is φ = 35071768.

The previous prime is 105215291. The next prime is 105215321. The reversal of 105215316 is 613512501.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×105215316² = 22140525441959712, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 4383960 + ... + 4383983.

It is an arithmetic number, because the mean of its divisors is an integer number (20458536).

Almost surely, 2^105215316 is an apocalyptic number.

It is an amenable number.

105215316 is an abundant number, since it is smaller than the sum of its proper divisors (140287116).

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

105215316 is a wasteful number, since it uses less digits than its factorization.

105215316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8767950 (or 8767948 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 105215316 is about 10257.4517303276. The cubic root of 105215316 is about 472.0916524595.

Adding to 105215316 its reverse (613512501), we get a palindrome (718727817).

The spelling of 105215316 in words is "one hundred five million, two hundred fifteen thousand, three hundred sixteen".