210530061 has 48 divisors (see below), whose sum is σ = 359084544. Its totient is φ = 116370432.

The previous prime is 210530011. The next prime is 210530069. The reversal of 210530061 is 160035012.

210530061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 210530061 - 2¹³ = 210521869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210530069) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 286851 + ... + 287583.

It is an arithmetic number, because the mean of its divisors is an integer number (7480928).

Almost surely, 2^210530061 is an apocalyptic number.

210530061 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

210530061 is a deficient number, since it is larger than the sum of its proper divisors (148554483).

210530061 is a wasteful number, since it uses less digits than its factorization.

210530061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890 (or 887 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 210530061 is about 14509.6540620375. The cubic root of 210530061 is about 594.8918768764.

Adding to 210530061 its reverse (160035012), we get a palindrome (370565073).

The spelling of 210530061 in words is "two hundred ten million, five hundred thirty thousand, sixty-one".