210003601 has 16 divisors (see below), whose sum is σ = 230127696. Its totient is φ = 190826496.

The previous prime is 210003589. The next prime is 210003613. The reversal of 210003601 is 106300012.

It is an interprime number because it is at equal distance from previous prime (210003589) and next prime (210003613).

It can be written as a sum of positive squares in 8 ways, for example, as 85100625 + 124902976 = 9225^2 + 11176^2 .

It is not a de Polignac number, because 210003601 - 2⁵ = 210003569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210009601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84955 + ... + 87391.

It is an arithmetic number, because the mean of its divisors is an integer number (14382981).

Almost surely, 2^210003601 is an apocalyptic number.

It is an amenable number.

210003601 is a deficient number, since it is larger than the sum of its proper divisors (20124095).

210003601 is a wasteful number, since it uses less digits than its factorization.

210003601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2628.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 210003601 is about 14491.5009919608. The cubic root of 210003601 is about 594.3955927272.

Adding to 210003601 its reverse (106300012), we get a palindrome (316303613).

The spelling of 210003601 in words is "two hundred ten million, three thousand, six hundred one".