450251 has 4 divisors (see below), whose sum is σ = 455400. Its totient is φ = 445104.

The previous prime is 450239. The next prime is 450257. The reversal of 450251 is 152054.

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

It is a cyclic number.

It is not a de Polignac number, because 450251 - 2¹⁰ = 449227 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 450251.

It is not an unprimeable number, because it can be changed into a prime (450257) 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 3 ways as a sum of consecutive naturals, for example, 2441 + ... + 2618.

It is an arithmetic number, because the mean of its divisors is an integer number (113850).

2⁴⁵⁰²⁵¹ is an apocalyptic number.

450251 is a deficient number, since it is larger than the sum of its proper divisors (5149).

450251 is an equidigital number, since it uses as much as digits as its factorization.

450251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5148.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 450251 is about 671.0074515235. The cubic root of 450251 is about 76.6451882702.

The spelling of 450251 in words is "four hundred fifty thousand, two hundred fifty-one".