450931 has 4 divisors (see below), whose sum is σ = 485632. Its totient is φ = 416232.

The previous prime is 450929. The next prime is 450943. The reversal of 450931 is 139054.

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 450931 - 2¹ = 450929 is a prime.

It is a super-2 number, since 2×450931² = 406677533522, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450971) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 17331 + ... + 17356.

It is an arithmetic number, because the mean of its divisors is an integer number (121408).

2⁴⁵⁰⁹³¹ is an apocalyptic number.

450931 is a deficient number, since it is larger than the sum of its proper divisors (34701).

450931 is a wasteful number, since it uses less digits than its factorization.

450931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34700.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 450931 is about 671.5139611356. The cubic root of 450931 is about 76.6837538054.

Adding to 450931 its reverse (139054), we get a palindrome (589985).

The spelling of 450931 in words is "four hundred fifty thousand, nine hundred thirty-one".