4215454549 has 2 divisors, whose sum is σ = 4215454550. Its totient is φ = 4215454548.

The previous prime is 4215454543. The next prime is 4215454567. The reversal of 4215454549 is 9454545124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3464146449 + 751308100 = 58857^2 + 27410^2 .

It is a cyclic number.

It is not a de Polignac number, because 4215454549 - 2³ = 4215454541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4215454541) 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 as a sum of consecutive naturals, namely, 2107727274 + 2107727275.

It is an arithmetic number, because the mean of its divisors is an integer number (2107727275).

Almost surely, 2^4215454549 is an apocalyptic number.

It is an amenable number.

4215454549 is a deficient number, since it is larger than the sum of its proper divisors (1).

4215454549 is an equidigital number, since it uses as much as digits as its factorization.

4215454549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576000, while the sum is 43.

The square root of 4215454549 is about 64926.5319341793. The cubic root of 4215454549 is about 1615.4051770249.

The spelling of 4215454549 in words is "four billion, two hundred fifteen million, four hundred fifty-four thousand, five hundred forty-nine".