450971109 has 12 divisors (see below), whose sum is σ = 662082252. Its totient is φ = 295718400.

The previous prime is 450971089. The next prime is 450971113. The reversal of 450971109 is 901179054.

450971109 is a `hidden beast` number, since 450 + 97 + 110 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 233998209 + 216972900 = 15297^2 + 14730^2 .

It is not a de Polignac number, because 450971109 - 2¹³ = 450962917 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450971119) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 410172 + ... + 411269.

It is an arithmetic number, because the mean of its divisors is an integer number (55173521).

Almost surely, 2^450971109 is an apocalyptic number.

It is an amenable number.

450971109 is a deficient number, since it is larger than the sum of its proper divisors (211111143).

450971109 is a wasteful number, since it uses less digits than its factorization.

450971109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821508 (or 821505 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 450971109 is about 21236.0803586726. The cubic root of 450971109 is about 766.8602733685.

The spelling of 450971109 in words is "four hundred fifty million, nine hundred seventy-one thousand, one hundred nine".