4133235421 has 4 divisors (see below), whose sum is σ = 4723697632. Its totient is φ = 3542773212.

The previous prime is 4133235389. The next prime is 4133235437. The reversal of 4133235421 is 1245323314.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1245323314 = 2 ⋅622661657.

It is a cyclic number.

It is not a de Polignac number, because 4133235421 - 2⁵ = 4133235389 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4133235421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4133235451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295231095 + ... + 295231108.

It is an arithmetic number, because the mean of its divisors is an integer number (1180924408).

Almost surely, 2^4133235421 is an apocalyptic number.

It is an amenable number.

4133235421 is a deficient number, since it is larger than the sum of its proper divisors (590462211).

4133235421 is an equidigital number, since it uses as much as digits as its factorization.

4133235421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590462210.

The product of its digits is 8640, while the sum is 28.

The square root of 4133235421 is about 64290.2435910769. The cubic root of 4133235421 is about 1604.8337442265.

Adding to 4133235421 its reverse (1245323314), we get a palindrome (5378558735).

The spelling of 4133235421 in words is "four billion, one hundred thirty-three million, two hundred thirty-five thousand, four hundred twenty-one".