450328231 has 2 divisors, whose sum is σ = 450328232. Its totient is φ = 450328230.

The previous prime is 450328217. The next prime is 450328237. The reversal of 450328231 is 132823054.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 450328231 - 2²³ = 441939623 is a prime.

It is a super-2 number, since 2×450328231² = 405591031271178722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 450328231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (450328237) 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, 225164115 + 225164116.

It is an arithmetic number, because the mean of its divisors is an integer number (225164116).

Almost surely, 2^450328231 is an apocalyptic number.

450328231 is a deficient number, since it is larger than the sum of its proper divisors (1).

450328231 is an equidigital number, since it uses as much as digits as its factorization.

450328231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 450328231 is about 21220.9385042227. The cubic root of 450328231 is about 766.4957030464.

The spelling of 450328231 in words is "four hundred fifty million, three hundred twenty-eight thousand, two hundred thirty-one".