451105231 has 2 divisors, whose sum is σ = 451105232. Its totient is φ = 451105230.

The previous prime is 451105159. The next prime is 451105241. The reversal of 451105231 is 132501154.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 451105231 - 2¹¹ = 451103183 is a prime.

It is a super-2 number, since 2×451105231² = 406991858871126722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (451105241) 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 as a sum of consecutive naturals, namely, 225552615 + 225552616.

It is an arithmetic number, because the mean of its divisors is an integer number (225552616).

Almost surely, 2^451105231 is an apocalyptic number.

451105231 is a deficient number, since it is larger than the sum of its proper divisors (1).

451105231 is an equidigital number, since it uses as much as digits as its factorization.

451105231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 451105231 is about 21239.2380042223. The cubic root of 451105231 is about 766.9362890576.

Adding to 451105231 its reverse (132501154), we get a palindrome (583606385).

The spelling of 451105231 in words is "four hundred fifty-one million, one hundred five thousand, two hundred thirty-one".