450145 has 8 divisors (see below), whose sum is σ = 544104. Its totient is φ = 357504.

The previous prime is 450137. The next prime is 450161. The reversal of 450145 is 541054.

It can be written as a sum of positive squares in 4 ways, for example, as 253009 + 197136 = 503^2 + 444^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 450145 - 2³ = 450137 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

450145 is a lucky number.

It is a nialpdrome in base 9.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 757 + ... + 1213.

It is an arithmetic number, because the mean of its divisors is an integer number (68013).

2⁴⁵⁰¹⁴⁵ is an apocalyptic number.

It is an amenable number.

450145 is a deficient number, since it is larger than the sum of its proper divisors (93959).

450145 is a wasteful number, since it uses less digits than its factorization.

450145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 450145 is about 670.9284611641. The cubic root of 450145 is about 76.6391730864.

Adding to 450145 its reverse (541054), we get a palindrome (991199).

Subtracting 450145 from its reverse (541054), we obtain a palindrome (90909).

It can be divided in two parts, 450 and 145, that added together give a palindrome (595).

The spelling of 450145 in words is "four hundred fifty thousand, one hundred forty-five".