450000631 has 2 divisors, whose sum is σ = 450000632. Its totient is φ = 450000630.

The previous prime is 450000613. The next prime is 450000647. The reversal of 450000631 is 136000054.

Together with previous prime (450000613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 450000631 - 2⁹ = 450000119 is a prime.

It is a super-2 number, since 2×450000631² = 405001135800796322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 450000599 and 450000608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (450000601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225000315 + 225000316.

It is an arithmetic number, because the mean of its divisors is an integer number (225000316).

Almost surely, 2^450000631 is an apocalyptic number.

450000631 is a deficient number, since it is larger than the sum of its proper divisors (1).

450000631 is an equidigital number, since it uses as much as digits as its factorization.

450000631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 450000631 is about 21213.2183084038. The cubic root of 450000631 is about 766.3097905721.

Adding to 450000631 its reverse (136000054), we get a palindrome (586000685).

The spelling of 450000631 in words is "four hundred fifty million, six hundred thirty-one", and thus it is an aban number.