210040105 has 16 divisors (see below), whose sum is σ = 277691328. Its totient is φ = 151240000.

The previous prime is 210040087. The next prime is 210040111. The reversal of 210040105 is 501040012.

It is not a de Polignac number, because 210040105 - 2⁹ = 210039593 is a prime.

It is a super-2 number, since 2×210040105² = 88233691416822050, which contains 22 as substring.

It is a Duffinian 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 15 ways as a sum of consecutive naturals, for example, 13351 + ... + 24460.

It is an arithmetic number, because the mean of its divisors is an integer number (17355708).

Almost surely, 2^210040105 is an apocalyptic number.

It is an amenable number.

210040105 is a deficient number, since it is larger than the sum of its proper divisors (67651223).

210040105 is a wasteful number, since it uses less digits than its factorization.

210040105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37928.

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

The square root of 210040105 is about 14492.7604340926. The cubic root of 210040105 is about 594.4300311202.

Adding to 210040105 its reverse (501040012), we get a palindrome (711080117).

The spelling of 210040105 in words is "two hundred ten million, forty thousand, one hundred five".