456518729 has 2 divisors, whose sum is σ = 456518730. Its totient is φ = 456518728.

The previous prime is 456518717. The next prime is 456518737. The reversal of 456518729 is 927815654.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 442471225 + 14047504 = 21035^2 + 3748^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-456518729 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (456518749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228259364 + 228259365.

It is an arithmetic number, because the mean of its divisors is an integer number (228259365).

Almost surely, 2^456518729 is an apocalyptic number.

It is an amenable number.

456518729 is a deficient number, since it is larger than the sum of its proper divisors (1).

456518729 is an equidigital number, since it uses as much as digits as its factorization.

456518729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 604800, while the sum is 47.

The square root of 456518729 is about 21366.2989073915. The cubic root of 456518729 is about 769.9919766410.

The spelling of 456518729 in words is "four hundred fifty-six million, five hundred eighteen thousand, seven hundred twenty-nine".