4331134421 has 4 divisors (see below), whose sum is σ = 4585907052. Its totient is φ = 4076361792.

The previous prime is 4331134411. The next prime is 4331134429. The reversal of 4331134421 is 1244311334.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1867104100 + 2464030321 = 43210^2 + 49639^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4331134421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4331134429) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 127386290 + ... + 127386323.

It is an arithmetic number, because the mean of its divisors is an integer number (1146476763).

Almost surely, 2^4331134421 is an apocalyptic number.

It is an amenable number.

4331134421 is a deficient number, since it is larger than the sum of its proper divisors (254772631).

4331134421 is a wasteful number, since it uses less digits than its factorization.

4331134421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254772630.

The product of its digits is 3456, while the sum is 26.

The square root of 4331134421 is about 65811.3548029517. The cubic root of 4331134421 is about 1630.0486041938.

Adding to 4331134421 its reverse (1244311334), we get a palindrome (5575445755).

The spelling of 4331134421 in words is "four billion, three hundred thirty-one million, one hundred thirty-four thousand, four hundred twenty-one".