2013641 has 8 divisors (see below), whose sum is σ = 2310720. Its totient is φ = 1718928.

The previous prime is 2013619. The next prime is 2013653. The reversal of 2013641 is 1463102.

2013641 = T₇₅₅ + T₇₅₆ + ... + T₇₆₁.

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

It is a cyclic number.

It is not a de Polignac number, because 2013641 - 2¹⁴ = 1997257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2013241) 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 7 ways as a sum of consecutive naturals, for example, 2015 + ... + 2843.

It is an arithmetic number, because the mean of its divisors is an integer number (288840).

2^2013641 is an apocalyptic number.

It is an amenable number.

2013641 is a deficient number, since it is larger than the sum of its proper divisors (297079).

2013641 is an equidigital number, since it uses as much as digits as its factorization.

2013641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2013641 is about 1419.0281885854. The cubic root of 2013641 is about 126.2778992684.

Adding to 2013641 its reverse (1463102), we get a palindrome (3476743).

The spelling of 2013641 in words is "two million, thirteen thousand, six hundred forty-one".