2010535921 has 3 divisors (see below), whose sum is σ = 2010580761. Its totient is φ = 2010491082.

The previous prime is 2010535913. The next prime is 2010535927. The reversal of 2010535921 is 1295350102.

The square root of 2010535921 is 44839.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1295350102 = 2 ⋅647675051.

It is not a de Polignac number, because 2010535921 - 2³ = 2010535913 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2010535921.

It is not an unprimeable number, because it can be changed into a prime (2010535927) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 22420 + ... + 67258.

It is an arithmetic number, because the mean of its divisors is an integer number (670193587).

Almost surely, 2^2010535921 is an apocalyptic number.

2010535921 is the 44839-th square number.

2010535921 is the 22420-th centered octagonal number.

It is an amenable number.

2010535921 is a deficient number, since it is larger than the sum of its proper divisors (44840).

2010535921 is an frugal number, since it uses more digits than its factorization.

2010535921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89678 (or 44839 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 28.

The cubic root of 2010535921 is about 1262.1295810460.

The spelling of 2010535921 in words is "two billion, ten million, five hundred thirty-five thousand, nine hundred twenty-one".