450651 has 4 divisors (see below), whose sum is σ = 600872. Its totient is φ = 300432.

The previous prime is 450649. The next prime is 450677. The reversal of 450651 is 156054.

It is a happy number.

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

It is not a de Polignac number, because 450651 - 2¹ = 450649 is a prime.

It is a super-3 number, since 3×450651³ = 274563164721733353, which contains 333 as substring.

It is a D-number.

It is a Duffinian number.

450651 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 450651.

It is not an unprimeable number, because it can be changed into a prime (450601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75106 + ... + 75111.

It is an arithmetic number, because the mean of its divisors is an integer number (150218).

2⁴⁵⁰⁶⁵¹ is an apocalyptic number.

450651 is a deficient number, since it is larger than the sum of its proper divisors (150221).

450651 is a wasteful number, since it uses less digits than its factorization.

450651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150220.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 450651 is about 671.3054446375. The cubic root of 450651 is about 76.6678785778.

The spelling of 450651 in words is "four hundred fifty thousand, six hundred fifty-one".