2013021541 has 4 divisors (see below), whose sum is σ = 2014122784. Its totient is φ = 2011920300.

The previous prime is 2013021529. The next prime is 2013021601. The reversal of 2013021541 is 1451203102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2013021541 - 2¹¹ = 2013019493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013021511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 547875 + ... + 551536.

It is an arithmetic number, because the mean of its divisors is an integer number (503530696).

Almost surely, 2^2013021541 is an apocalyptic number.

It is an amenable number.

2013021541 is a deficient number, since it is larger than the sum of its proper divisors (1101243).

2013021541 is a wasteful number, since it uses less digits than its factorization.

2013021541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101242.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 2013021541 is about 44866.7086044876. The cubic root of 2013021541 is about 1262.6494892882.

Adding to 2013021541 its reverse (1451203102), we get a palindrome (3464224643).

The spelling of 2013021541 in words is "two billion, thirteen million, twenty-one thousand, five hundred forty-one".