450511031 has 2 divisors, whose sum is σ = 450511032. Its totient is φ = 450511030.

The previous prime is 450511021. The next prime is 450511049. The reversal of 450511031 is 130115054.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 450511031 - 2⁶ = 450510967 is a prime.

It is a super-2 number, since 2×450511031² = 405920378105365922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 450510994 and 450511012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (450511021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225255515 + 225255516.

It is an arithmetic number, because the mean of its divisors is an integer number (225255516).

Almost surely, 2^450511031 is an apocalyptic number.

450511031 is a deficient number, since it is larger than the sum of its proper divisors (1).

450511031 is an equidigital number, since it uses as much as digits as its factorization.

450511031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 450511031 is about 21225.2451340379. The cubic root of 450511031 is about 766.5994025633.

Adding to 450511031 its reverse (130115054), we get a palindrome (580626085).

The spelling of 450511031 in words is "four hundred fifty million, five hundred eleven thousand, thirty-one".