2135103444 has 18 divisors (see below), whose sum is σ = 5397067130. Its totient is φ = 711701136.

The previous prime is 2135103433. The next prime is 2135103449. The reversal of 2135103444 is 4443015312.

It is a happy number.

2135103444 is a `hidden beast` number, since 213 + 5 + 1 + 0 + 3 + 444 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2121707844 + 13395600 = 46062^2 + 3660^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×2135103444² = 9117333433161322272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2135103449) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29654179 + ... + 29654250.

Almost surely, 2^2135103444 is an apocalyptic number.

It is an amenable number.

2135103444 is an abundant number, since it is smaller than the sum of its proper divisors (3261963686).

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

2135103444 is a wasteful number, since it uses less digits than its factorization.

2135103444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59308439 (or 59308434 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 2135103444 is about 46207.1795720102. The cubic root of 2135103444 is about 1287.6751275148.

Adding to 2135103444 its reverse (4443015312), we get a palindrome (6578118756).

The spelling of 2135103444 in words is "two billion, one hundred thirty-five million, one hundred three thousand, four hundred forty-four".