2010521 has 4 divisors (see below), whose sum is σ = 2013732. Its totient is φ = 2007312.

The previous prime is 2010479. The next prime is 2010527. The reversal of 2010521 is 1250102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 225625 + 1784896 = 475^2 + 1336^2 .

It is a cyclic number.

It is not a de Polignac number, because 2010521 - 2¹⁸ = 1748377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2010527) 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 3 ways as a sum of consecutive naturals, for example, 326 + ... + 2031.

It is an arithmetic number, because the mean of its divisors is an integer number (503433).

2^2010521 is an apocalyptic number.

It is an amenable number.

2010521 is a deficient number, since it is larger than the sum of its proper divisors (3211).

2010521 is an equidigital number, since it uses as much as digits as its factorization.

2010521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3210.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 2010521 is about 1417.9284185036. The cubic root of 2010521 is about 126.2126458780.

Adding to 2010521 its reverse (1250102), we get a palindrome (3260623).

The spelling of 2010521 in words is "two million, ten thousand, five hundred twenty-one".