2135542044 has 24 divisors (see below), whose sum is σ = 4984897680. Its totient is φ = 711566464.

The previous prime is 2135542039. The next prime is 2135542051. The reversal of 2135542044 is 4402455312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2199 + ... + 65390.

It is an arithmetic number, because the mean of its divisors is an integer number (207704070).

Almost surely, 2^2135542044 is an apocalyptic number.

It is an amenable number.

2135542044 is an abundant number, since it is smaller than the sum of its proper divisors (2849355636).

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

2135542044 is a wasteful number, since it uses less digits than its factorization.

2135542044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70229 (or 70227 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 2135542044 is about 46211.9253440062. The cubic root of 2135542044 is about 1287.7632943035.

Adding to 2135542044 its reverse (4402455312), we get a palindrome (6537997356).

The spelling of 2135542044 in words is "two billion, one hundred thirty-five million, five hundred forty-two thousand, forty-four".