457144643 has 2 divisors, whose sum is σ = 457144644. Its totient is φ = 457144642.

The previous prime is 457144627. The next prime is 457144669. The reversal of 457144643 is 346441754.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 457144643 - 2⁴ = 457144627 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 457144597 and 457144606.

It is not a weakly prime, because it can be changed into another prime (457144613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228572321 + 228572322.

It is an arithmetic number, because the mean of its divisors is an integer number (228572322).

Almost surely, 2^457144643 is an apocalyptic number.

457144643 is a deficient number, since it is larger than the sum of its proper divisors (1).

457144643 is an equidigital number, since it uses as much as digits as its factorization.

457144643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161280, while the sum is 38.

The square root of 457144643 is about 21380.9411158630. The cubic root of 457144643 is about 770.3437173510.

The spelling of 457144643 in words is "four hundred fifty-seven million, one hundred forty-four thousand, six hundred forty-three".