2013559641 has 10 divisors (see below), whose sum is σ = 3007910202. Its totient is φ = 1342373040.

The previous prime is 2013559631. The next prime is 2013559649. The reversal of 2013559641 is 1469553102.

2013559641 is a `hidden beast` number, since 2 + 0 + 1 + 3 + 5 + 5 + 9 + 641 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2009639241 + 3920400 = 44829^2 + 1980^2 .

It is not a de Polignac number, because 2013559641 - 2²⁷ = 1879341913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2013559596 and 2013559605.

It is not an unprimeable number, because it can be changed into a prime (2013559649) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 12429300 + ... + 12429461.

Almost surely, 2^2013559641 is an apocalyptic number.

It is an amenable number.

2013559641 is a deficient number, since it is larger than the sum of its proper divisors (994350561).

2013559641 is an equidigital number, since it uses as much as digits as its factorization.

2013559641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24858773 (or 24858764 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 2013559641 is about 44872.7048549561. The cubic root of 2013559641 is about 1262.7619853786.

The spelling of 2013559641 in words is "two billion, thirteen million, five hundred fifty-nine thousand, six hundred forty-one".