210115045 has 16 divisors (see below), whose sum is σ = 295947648. Its totient is φ = 140184000.

The previous prime is 210115001. The next prime is 210115067. The reversal of 210115045 is 540511012.

It is not a de Polignac number, because 210115045 - 2²⁷ = 75897317 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 79831 + ... + 82420.

It is an arithmetic number, because the mean of its divisors is an integer number (18496728).

Almost surely, 2^210115045 is an apocalyptic number.

It is an amenable number.

210115045 is a deficient number, since it is larger than the sum of its proper divisors (85832603).

210115045 is a wasteful number, since it uses less digits than its factorization.

210115045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162300.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 210115045 is about 14495.3456323056. The cubic root of 210115045 is about 594.5007180805.

Adding to 210115045 its reverse (540511012), we get a palindrome (750626057).

The spelling of 210115045 in words is "two hundred ten million, one hundred fifteen thousand, forty-five".