210839013 has 60 divisors (see below), whose sum is σ = 388016928. Its totient is φ = 109403280.

The previous prime is 210839011. The next prime is 210839021. The reversal of 210839013 is 310938012.

It is not a de Polignac number, because 210839013 - 2¹ = 210839011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210839011) by changing a digit.

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 59 ways as a sum of consecutive naturals, for example, 237256 + ... + 238142.

Almost surely, 2^210839013 is an apocalyptic number.

It is an amenable number.

210839013 is a deficient number, since it is larger than the sum of its proper divisors (177177915).

210839013 is an equidigital number, since it uses as much as digits as its factorization.

210839013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932 (or 908 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 210839013 is about 14520.2965878800. The cubic root of 210839013 is about 595.1827351072.

The spelling of 210839013 in words is "two hundred ten million, eight hundred thirty-nine thousand, thirteen".