451225871 has 2 divisors, whose sum is σ = 451225872. Its totient is φ = 451225870.

The previous prime is 451225847. The next prime is 451225909. The reversal of 451225871 is 178522154.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 451225871 - 2¹⁰ = 451224847 is a prime.

It is equal to p_23914466 and since 451225871 and 23914466 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (451225811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225612935 + 225612936.

It is an arithmetic number, because the mean of its divisors is an integer number (225612936).

Almost surely, 2^451225871 is an apocalyptic number.

451225871 is a deficient number, since it is larger than the sum of its proper divisors (1).

451225871 is an equidigital number, since it uses as much as digits as its factorization.

451225871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22400, while the sum is 35.

The square root of 451225871 is about 21242.0778409270. The cubic root of 451225871 is about 767.0046507472.

The spelling of 451225871 in words is "four hundred fifty-one million, two hundred twenty-five thousand, eight hundred seventy-one".