105021204 has 12 divisors (see below), whose sum is σ = 245049504. Its totient is φ = 35007064.

The previous prime is 105021139. The next prime is 105021247. The reversal of 105021204 is 402120501.

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

It is a super-2 number, since 2×105021204² = 22058906579219232, 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, 4375872 + ... + 4375895.

It is an arithmetic number, because the mean of its divisors is an integer number (20420792).

Almost surely, 2^105021204 is an apocalyptic number.

It is an amenable number.

105021204 is an abundant number, since it is smaller than the sum of its proper divisors (140028300).

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

105021204 is a wasteful number, since it uses less digits than its factorization.

105021204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8751774 (or 8751772 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 105021204 is about 10247.9853629872. The cubic root of 105021204 is about 471.8011527143.

Adding to 105021204 its reverse (402120501), we get a palindrome (507141705).

The spelling of 105021204 in words is "one hundred five million, twenty-one thousand, two hundred four".