4135442521 has 8 divisors (see below), whose sum is σ = 4728586304. Its totient is φ = 3542890320.

The previous prime is 4135442503. The next prime is 4135442537. The reversal of 4135442521 is 1252445314.

4135442521 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 4135442521 - 2⁷ = 4135442393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4135442561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132810 + ... + 160963.

It is an arithmetic number, because the mean of its divisors is an integer number (591073288).

Almost surely, 2^4135442521 is an apocalyptic number.

It is an amenable number.

4135442521 is a deficient number, since it is larger than the sum of its proper divisors (593143783).

4135442521 is a wasteful number, since it uses less digits than its factorization.

4135442521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295791.

The product of its digits is 19200, while the sum is 31.

The square root of 4135442521 is about 64307.4064241437. The cubic root of 4135442521 is about 1605.1193476272.

Adding to 4135442521 its reverse (1252445314), we get a palindrome (5387887835).

The spelling of 4135442521 in words is "four billion, one hundred thirty-five million, four hundred forty-two thousand, five hundred twenty-one".