210442105 has 16 divisors (see below), whose sum is σ = 261840384. Its totient is φ = 162195840.

The previous prime is 210442103. The next prime is 210442117. The reversal of 210442105 is 501244012.

It is not a de Polignac number, because 210442105 - 2¹ = 210442103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210442103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33202 + ... + 39028.

It is an arithmetic number, because the mean of its divisors is an integer number (16365024).

Almost surely, 2^210442105 is an apocalyptic number.

It is an amenable number.

210442105 is a deficient number, since it is larger than the sum of its proper divisors (51398279).

210442105 is a wasteful number, since it uses less digits than its factorization.

210442105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6096.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 210442105 is about 14506.6227978810. The cubic root of 210442105 is about 594.8090199864.

Adding to 210442105 its reverse (501244012), we get a palindrome (711686117).

The spelling of 210442105 in words is "two hundred ten million, four hundred forty-two thousand, one hundred five".