450685481 has 2 divisors, whose sum is σ = 450685482. Its totient is φ = 450685480.

The previous prime is 450685439. The next prime is 450685513. The reversal of 450685481 is 184586054.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 285305881 + 165379600 = 16891^2 + 12860^2 .

It is a cyclic number.

It is not a de Polignac number, because 450685481 - 2¹⁴ = 450669097 is a prime.

It is a super-2 number, since 2×450685481² = 406234805568402722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (450685421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225342740 + 225342741.

It is an arithmetic number, because the mean of its divisors is an integer number (225342741).

Almost surely, 2^450685481 is an apocalyptic number.

It is an amenable number.

450685481 is a deficient number, since it is larger than the sum of its proper divisors (1).

450685481 is an equidigital number, since it uses as much as digits as its factorization.

450685481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 153600, while the sum is 41.

The square root of 450685481 is about 21229.3542294626. The cubic root of 450685481 is about 766.6983391032.

The spelling of 450685481 in words is "four hundred fifty million, six hundred eighty-five thousand, four hundred eighty-one".