450431111 has 8 divisors (see below), whose sum is σ = 487112640. Its totient is φ = 414040032.

The previous prime is 450431087. The next prime is 450431131. The reversal of 450431111 is 111134054.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 450431111 - 2²² = 446236807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450431131) 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 7 ways as a sum of consecutive naturals, for example, 69380 + ... + 75593.

It is an arithmetic number, because the mean of its divisors is an integer number (60889080).

Almost surely, 2^450431111 is an apocalyptic number.

450431111 is a deficient number, since it is larger than the sum of its proper divisors (36681529).

450431111 is a wasteful number, since it uses less digits than its factorization.

450431111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145225.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 450431111 is about 21223.3623867661. The cubic root of 450431111 is about 766.5540686771.

Adding to 450431111 its reverse (111134054), we get a palindrome (561565165).

The spelling of 450431111 in words is "four hundred fifty million, four hundred thirty-one thousand, one hundred eleven".