451109 has 2 divisors, whose sum is σ = 451110. Its totient is φ = 451108.

The previous prime is 451103. The next prime is 451159. The reversal of 451109 is 901154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 448900 + 2209 = 670^2 + 47^2 .

It is a cyclic number.

It is not a de Polignac number, because 451109 - 2⁴ = 451093 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (451103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225554 + 225555.

It is an arithmetic number, because the mean of its divisors is an integer number (225555).

2⁴⁵¹¹⁰⁹ is an apocalyptic number.

It is an amenable number.

451109 is a deficient number, since it is larger than the sum of its proper divisors (1).

451109 is an equidigital number, since it uses as much as digits as its factorization.

451109 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 20.

The square root of 451109 is about 671.6464843949. The cubic root of 451109 is about 76.6938424978.

The spelling of 451109 in words is "four hundred fifty-one thousand, one hundred nine".