2113005544 has 16 divisors (see below), whose sum is σ = 4266646020. Its totient is φ = 975233280.

The previous prime is 2113005541. The next prime is 2113005571. The reversal of 2113005544 is 4455003112.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2029502500 + 83503044 = 45050^2 + 9138^2 .

It is not an unprimeable number, because it can be changed into a prime (2113005541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10158577 + ... + 10158784.

Almost surely, 2^2113005544 is an apocalyptic number.

It is an amenable number.

2113005544 is an abundant number, since it is smaller than the sum of its proper divisors (2153640476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2113005544 is a wasteful number, since it uses less digits than its factorization.

2113005544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20317380 (or 20317376 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2113005544 is about 45967.4400418383. The cubic root of 2113005544 is about 1283.2173181831.

Adding to 2113005544 its reverse (4455003112), we get a palindrome (6568008656).

The spelling of 2113005544 in words is "two billion, one hundred thirteen million, five thousand, five hundred forty-four".