451045043 has 4 divisors (see below), whose sum is σ = 451089768. Its totient is φ = 451000320.

The previous prime is 451045039. The next prime is 451045057. The reversal of 451045043 is 340540154.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 451045043 - 2² = 451045039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (451045013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 680 + ... + 30042.

It is an arithmetic number, because the mean of its divisors is an integer number (112772442).

Almost surely, 2^451045043 is an apocalyptic number.

451045043 is a deficient number, since it is larger than the sum of its proper divisors (44725).

451045043 is a wasteful number, since it uses less digits than its factorization.

451045043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44724.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 451045043 is about 21237.8210511342. The cubic root of 451045043 is about 766.9021784545.

Adding to 451045043 its reverse (340540154), we get a palindrome (791585197).

The spelling of 451045043 in words is "four hundred fifty-one million, forty-five thousand, forty-three".