451872073 has 2 divisors, whose sum is σ = 451872074. Its totient is φ = 451872072.

The previous prime is 451872061. The next prime is 451872097. The reversal of 451872073 is 370278154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 256096009 + 195776064 = 16003^2 + 13992^2 .

It is a cyclic number.

It is not a de Polignac number, because 451872073 - 2⁹ = 451871561 is a prime.

It is not a weakly prime, because it can be changed into another prime (451872173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225936036 + 225936037.

It is an arithmetic number, because the mean of its divisors is an integer number (225936037).

Almost surely, 2^451872073 is an apocalyptic number.

It is an amenable number.

451872073 is a deficient number, since it is larger than the sum of its proper divisors (1).

451872073 is an equidigital number, since it uses as much as digits as its factorization.

451872073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 451872073 is about 21257.2828225999. The cubic root of 451872073 is about 767.3706193649.

The spelling of 451872073 in words is "four hundred fifty-one million, eight hundred seventy-two thousand, seventy-three".