4134450421 has 2 divisors, whose sum is σ = 4134450422. Its totient is φ = 4134450420.

The previous prime is 4134450401. The next prime is 4134450433. The reversal of 4134450421 is 1240544314.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3658556196 + 475894225 = 60486^2 + 21815^2 .

It is a cyclic number.

It is not a de Polignac number, because 4134450421 - 2⁹ = 4134449909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4134450421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4134450401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2067225210 + 2067225211.

It is an arithmetic number, because the mean of its divisors is an integer number (2067225211).

Almost surely, 2^4134450421 is an apocalyptic number.

It is an amenable number.

4134450421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4134450421 is an equidigital number, since it uses as much as digits as its factorization.

4134450421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 4134450421 is about 64299.6922309897. The cubic root of 4134450421 is about 1604.9909803681.

Adding to 4134450421 its reverse (1240544314), we get a palindrome (5374994735).

The spelling of 4134450421 in words is "four billion, one hundred thirty-four million, four hundred fifty thousand, four hundred twenty-one".