210106045 has 16 divisors (see below), whose sum is σ = 260427312. Its totient is φ = 162639360.

The previous prime is 210106033. The next prime is 210106049. The reversal of 210106045 is 540601012.

It can be written as a sum of positive squares in 8 ways, for example, as 116964 + 209989081 = 342^2 + 14491^2 .

It is not a de Polignac number, because 210106045 - 2¹⁵ = 210073277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210106049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13915 + ... + 24775.

It is an arithmetic number, because the mean of its divisors is an integer number (16276707).

Almost surely, 2^210106045 is an apocalyptic number.

It is an amenable number.

210106045 is a deficient number, since it is larger than the sum of its proper divisors (50321267).

210106045 is a wasteful number, since it uses less digits than its factorization.

210106045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10992.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 210106045 is about 14495.0351845037. The cubic root of 210106045 is about 594.4922297420.

Adding to 210106045 its reverse (540601012), we get a palindrome (750707057).

The spelling of 210106045 in words is "two hundred ten million, one hundred six thousand, forty-five".