450019 has 2 divisors, whose sum is σ = 450020. Its totient is φ = 450018.

The previous prime is 450011. The next prime is 450029. The reversal of 450019 is 910054.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 450019 - 2³ = 450011 is a prime.

It is a super-2 number, since 2×450019² = 405034200722, which contains 22 as substring.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 449978 and 450005.

It is not a weakly prime, because it can be changed into another prime (450011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225009 + 225010.

It is an arithmetic number, because the mean of its divisors is an integer number (225010).

2⁴⁵⁰⁰¹⁹ is an apocalyptic number.

450019 is a deficient number, since it is larger than the sum of its proper divisors (1).

450019 is an equidigital number, since it uses as much as digits as its factorization.

450019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 450019 is about 670.8345548643. The cubic root of 450019 is about 76.6320217337.

The spelling of 450019 in words is "four hundred fifty thousand, nineteen".