451143457 has 2 divisors, whose sum is σ = 451143458. Its totient is φ = 451143456.

The previous prime is 451143449. The next prime is 451143491. The reversal of 451143457 is 754341154.

It is an a-pointer prime, because the next prime (451143491) can be obtained adding 451143457 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 359443681 + 91699776 = 18959^2 + 9576^2 .

It is a cyclic number.

It is not a de Polignac number, because 451143457 - 2³ = 451143449 is a prime.

It is not a weakly prime, because it can be changed into another prime (451143437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225571728 + 225571729.

It is an arithmetic number, because the mean of its divisors is an integer number (225571729).

Almost surely, 2^451143457 is an apocalyptic number.

It is an amenable number.

451143457 is a deficient number, since it is larger than the sum of its proper divisors (1).

451143457 is an equidigital number, since it uses as much as digits as its factorization.

451143457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33600, while the sum is 34.

The square root of 451143457 is about 21240.1378762003. The cubic root of 451143457 is about 766.9579514670.

The spelling of 451143457 in words is "four hundred fifty-one million, one hundred forty-three thousand, four hundred fifty-seven".