456128669 has 2 divisors, whose sum is σ = 456128670. Its totient is φ = 456128668.

The previous prime is 456128657. The next prime is 456128693. The reversal of 456128669 is 966821654.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 325369444 + 130759225 = 18038^2 + 11435^2 .

It is a cyclic number.

It is not a de Polignac number, because 456128669 - 2¹² = 456124573 is a prime.

It is a super-2 number, since 2×456128669² = 416106725367423122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (456128369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228064334 + 228064335.

It is an arithmetic number, because the mean of its divisors is an integer number (228064335).

Almost surely, 2^456128669 is an apocalyptic number.

It is an amenable number.

456128669 is a deficient number, since it is larger than the sum of its proper divisors (1).

456128669 is an equidigital number, since it uses as much as digits as its factorization.

456128669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 47.

The square root of 456128669 is about 21357.1690305621. The cubic root of 456128669 is about 769.7726145922.

The spelling of 456128669 in words is "four hundred fifty-six million, one hundred twenty-eight thousand, six hundred sixty-nine".