450421453 has 2 divisors, whose sum is σ = 450421454. Its totient is φ = 450421452.

The previous prime is 450421403. The next prime is 450421481. The reversal of 450421453 is 354124054.

It is an a-pointer prime, because the next prime (450421481) can be obtained adding 450421453 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 377796969 + 72624484 = 19437^2 + 8522^2 .

It is a cyclic number.

It is not a de Polignac number, because 450421453 - 2¹⁷ = 450290381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (450421403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225210726 + 225210727.

It is an arithmetic number, because the mean of its divisors is an integer number (225210727).

Almost surely, 2^450421453 is an apocalyptic number.

It is an amenable number.

450421453 is a deficient number, since it is larger than the sum of its proper divisors (1).

450421453 is an equidigital number, since it uses as much as digits as its factorization.

450421453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 450421453 is about 21223.1348532680. The cubic root of 450421453 is about 766.5485899021.

The spelling of 450421453 in words is "four hundred fifty million, four hundred twenty-one thousand, four hundred fifty-three".