451166 has 4 divisors (see below), whose sum is σ = 676752. Its totient is φ = 225582.

The previous prime is 451159. The next prime is 451177. The reversal of 451166 is 661154.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 112790 + ... + 112793.

It is an arithmetic number, because the mean of its divisors is an integer number (169188).

2⁴⁵¹¹⁶⁶ is an apocalyptic number.

451166 is a deficient number, since it is larger than the sum of its proper divisors (225586).

451166 is a wasteful number, since it uses less digits than its factorization.

451166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225585.

The product of its digits is 720, while the sum is 23.

The square root of 451166 is about 671.6889160914. The cubic root of 451166 is about 76.6970725855.

The spelling of 451166 in words is "four hundred fifty-one thousand, one hundred sixty-six".