454705649 has 2 divisors, whose sum is σ = 454705650. Its totient is φ = 454705648.

The previous prime is 454705627. The next prime is 454705679. The reversal of 454705649 is 946507454.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 356001424 + 98704225 = 18868^2 + 9935^2 .

It is a cyclic number.

It is not a de Polignac number, because 454705649 - 2²⁸ = 186270193 is a prime.

It is a super-2 number, since 2×454705649² = 413514454465022402, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (454705609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227352824 + 227352825.

It is an arithmetic number, because the mean of its divisors is an integer number (227352825).

Almost surely, 2^454705649 is an apocalyptic number.

It is an amenable number.

454705649 is a deficient number, since it is larger than the sum of its proper divisors (1).

454705649 is an equidigital number, since it uses as much as digits as its factorization.

454705649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 604800, while the sum is 44.

The square root of 454705649 is about 21323.8281975822. The cubic root of 454705649 is about 768.9712742281.

The spelling of 454705649 in words is "four hundred fifty-four million, seven hundred five thousand, six hundred forty-nine".