8454421501 has 2 divisors, whose sum is σ = 8454421502. Its totient is φ = 8454421500.

The previous prime is 8454421483. The next prime is 8454421531. The reversal of 8454421501 is 1051244548.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5153804100 + 3300617401 = 71790^2 + 57451^2 .

It is a cyclic number.

It is not a de Polignac number, because 8454421501 - 2³¹ = 6306937853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8454421531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4227210750 + 4227210751.

It is an arithmetic number, because the mean of its divisors is an integer number (4227210751).

Almost surely, 2^8454421501 is an apocalyptic number.

It is an amenable number.

8454421501 is a deficient number, since it is larger than the sum of its proper divisors (1).

8454421501 is an equidigital number, since it uses as much as digits as its factorization.

8454421501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25600, while the sum is 34.

The square root of 8454421501 is about 91947.9282039568. The cubic root of 8454421501 is about 2037.1732524122.

The spelling of 8454421501 in words is "eight billion, four hundred fifty-four million, four hundred twenty-one thousand, five hundred one".