451005345 has 24 divisors (see below), whose sum is σ = 893420736. Its totient is φ = 206173728.

The previous prime is 451005311. The next prime is 451005349. The reversal of 451005345 is 543500154.

It is not a de Polignac number, because 451005345 - 2¹³ = 450997153 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (451005349) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 715567 + ... + 716196.

It is an arithmetic number, because the mean of its divisors is an integer number (37225864).

Almost surely, 2^451005345 is an apocalyptic number.

451005345 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

451005345 is a deficient number, since it is larger than the sum of its proper divisors (442415391).

451005345 is a wasteful number, since it uses less digits than its factorization.

451005345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431781 (or 1431778 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 451005345 is about 21236.8864243325. The cubic root of 451005345 is about 766.8796785761.

Adding to 451005345 its reverse (543500154), we get a palindrome (994505499).

The spelling of 451005345 in words is "four hundred fifty-one million, five thousand, three hundred forty-five".