105215066 has 24 divisors (see below), whose sum is σ = 177526272. Its totient is φ = 46708200.

The previous prime is 105215059. The next prime is 105215069. The reversal of 105215066 is 660512501.

It is a super-2 number, since 2×105215066² = 22140420226768712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105215069) 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 11 ways as a sum of consecutive naturals, for example, 5351 + ... + 15461.

It is an arithmetic number, because the mean of its divisors is an integer number (7396928).

Almost surely, 2^105215066 is an apocalyptic number.

105215066 is a deficient number, since it is larger than the sum of its proper divisors (72311206).

105215066 is a wasteful number, since it uses less digits than its factorization.

105215066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10178 (or 10167 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 105215066 is about 10257.4395440578. The cubic root of 105215066 is about 472.0912785500.

Adding to 105215066 its reverse (660512501), we get a palindrome (765727567).

The spelling of 105215066 in words is "one hundred five million, two hundred fifteen thousand, sixty-six".