210105004 has 12 divisors (see below), whose sum is σ = 367797528. Its totient is φ = 105020000.

The previous prime is 210105001. The next prime is 210105037. The reversal of 210105004 is 400501012.

210105004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×210105004² = 88288225411680032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (210105001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11904 + ... + 23704.

It is an arithmetic number, because the mean of its divisors is an integer number (30649794).

Almost surely, 2^210105004 is an apocalyptic number.

It is an amenable number.

210105004 is a deficient number, since it is larger than the sum of its proper divisors (157692524).

210105004 is a wasteful number, since it uses less digits than its factorization.

210105004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16256 (or 16254 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 210105004 is about 14494.9992756123. Note that the first 3 decimals coincide. The cubic root of 210105004 is about 594.4912479085.

Adding to 210105004 its reverse (400501012), we get a palindrome (610606016).

The spelling of 210105004 in words is "two hundred ten million, one hundred five thousand, four".