450721093 has 2 divisors, whose sum is σ = 450721094. Its totient is φ = 450721092.

The previous prime is 450721091. The next prime is 450721111. The reversal of 450721093 is 390127054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 281669089 + 169052004 = 16783^2 + 13002^2 .

It is a cyclic number.

It is not a de Polignac number, because 450721093 - 2¹ = 450721091 is a prime.

It is a super-2 number, since 2×450721093² = 406299007350229298, which contains 22 as substring.

Together with 450721091, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (450721091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225360546 + 225360547.

It is an arithmetic number, because the mean of its divisors is an integer number (225360547).

Almost surely, 2^450721093 is an apocalyptic number.

It is an amenable number.

450721093 is a deficient number, since it is larger than the sum of its proper divisors (1).

450721093 is an equidigital number, since it uses as much as digits as its factorization.

450721093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 450721093 is about 21230.1929572013. The cubic root of 450721093 is about 766.7185327440.

It can be divided in two parts, 4507 and 21093, that added together give a square (25600 = 160²).

The spelling of 450721093 in words is "four hundred fifty million, seven hundred twenty-one thousand, ninety-three".