450451031 has 4 divisors (see below), whose sum is σ = 474159000. Its totient is φ = 426743064.

The previous prime is 450451019. The next prime is 450451037. The reversal of 450451031 is 130154054.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-450451031 is a prime.

It is a super-2 number, since 2×450451031² = 405812262657925922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 450450988 and 450451006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450451037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11853956 + ... + 11853993.

It is an arithmetic number, because the mean of its divisors is an integer number (118539750).

Almost surely, 2^450451031 is an apocalyptic number.

450451031 is a deficient number, since it is larger than the sum of its proper divisors (23707969).

450451031 is a wasteful number, since it uses less digits than its factorization.

450451031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23707968.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 450451031 is about 21223.8316757366. The cubic root of 450451031 is about 766.5653686159.

The spelling of 450451031 in words is "four hundred fifty million, four hundred fifty-one thousand, thirty-one".