451441117 has 2 divisors, whose sum is σ = 451441118. Its totient is φ = 451441116.

The previous prime is 451441099. The next prime is 451441141. The reversal of 451441117 is 711144154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 229401316 + 222039801 = 15146^2 + 14901^2 .

It is a cyclic number.

It is not a de Polignac number, because 451441117 - 2²³ = 443052509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (451441147) 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, 225720558 + 225720559.

It is an arithmetic number, because the mean of its divisors is an integer number (225720559).

Almost surely, 2^451441117 is an apocalyptic number.

It is an amenable number.

451441117 is a deficient number, since it is larger than the sum of its proper divisors (1).

451441117 is an equidigital number, since it uses as much as digits as its factorization.

451441117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2240, while the sum is 28.

The square root of 451441117 is about 21247.1437374533. The cubic root of 451441117 is about 767.1265914789.

The spelling of 451441117 in words is "four hundred fifty-one million, four hundred forty-one thousand, one hundred seventeen".