2011541 has 8 divisors (see below), whose sum is σ = 2333760. Its totient is φ = 1698048.

The previous prime is 2011531. The next prime is 2011543. The reversal of 2011541 is 1451102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2011541 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1676 + ... + 2613.

It is an arithmetic number, because the mean of its divisors is an integer number (291720).

2^2011541 is an apocalyptic number.

It is an amenable number.

2011541 is a deficient number, since it is larger than the sum of its proper divisors (322219).

2011541 is an equidigital number, since it uses as much as digits as its factorization.

2011541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4363.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 2011541 is about 1418.2880525479. The cubic root of 2011541 is about 126.2339861399.

Adding to 2011541 its reverse (1451102), we get a palindrome (3462643).

It can be divided in two parts, 2011 and 541, that added together give a palindrome (2552).

The spelling of 2011541 in words is "two million, eleven thousand, five hundred forty-one".