453489521 has 2 divisors, whose sum is σ = 453489522. Its totient is φ = 453489520.

The previous prime is 453489499. The next prime is 453489539. The reversal of 453489521 is 125984354.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 256480225 + 197009296 = 16015^2 + 14036^2 .

It is a cyclic number.

It is not a de Polignac number, because 453489521 - 2⁶ = 453489457 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (453489221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226744760 + 226744761.

It is an arithmetic number, because the mean of its divisors is an integer number (226744761).

Almost surely, 2^453489521 is an apocalyptic number.

It is an amenable number.

453489521 is a deficient number, since it is larger than the sum of its proper divisors (1).

453489521 is an equidigital number, since it uses as much as digits as its factorization.

453489521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 41.

The square root of 453489521 is about 21295.2934001859. The cubic root of 453489521 is about 768.2851142512.

The spelling of 453489521 in words is "four hundred fifty-three million, four hundred eighty-nine thousand, five hundred twenty-one".