450109 has 16 divisors (see below), whose sum is σ = 544320. Its totient is φ = 367360.

The previous prime is 450103. The next prime is 450113. The reversal of 450109 is 901054.

450109 = 21³ + 22³ + ... + 37³.

It is a cyclic number.

It is not a de Polignac number, because 450109 - 2³ = 450101 is a prime.

It is a super-2 number, since 2×450109² = 405196223762, which contains 22 as substring.

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

It is a Duffinian number.

450109 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450101) 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 in 15 ways as a sum of consecutive naturals, for example, 5382 + ... + 5464.

It is an arithmetic number, because the mean of its divisors is an integer number (34020).

2⁴⁵⁰¹⁰⁹ is an apocalyptic number.

It is an amenable number.

450109 is a deficient number, since it is larger than the sum of its proper divisors (94211).

450109 is a wasteful number, since it uses less digits than its factorization.

450109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140.

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

The square root of 450109 is about 670.9016321340. The cubic root of 450109 is about 76.6371299790.

The spelling of 450109 in words is "four hundred fifty thousand, one hundred nine".