454207109 has 2 divisors, whose sum is σ = 454207110. Its totient is φ = 454207108.

The previous prime is 454207087. The next prime is 454207121. The reversal of 454207109 is 901702454.

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., 417058084 + 37149025 = 20422^2 + 6095^2 .

It is a cyclic number.

It is not a de Polignac number, because 454207109 - 2¹⁶ = 454141573 is a prime.

It is a super-2 number, since 2×454207109² = 412608195732275762, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (454207129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227103554 + 227103555.

It is an arithmetic number, because the mean of its divisors is an integer number (227103555).

Almost surely, 2^454207109 is an apocalyptic number.

It is an amenable number.

454207109 is a deficient number, since it is larger than the sum of its proper divisors (1).

454207109 is an equidigital number, since it uses as much as digits as its factorization.

454207109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 454207109 is about 21312.1352520108. The cubic root of 454207109 is about 768.6901376790.

The spelling of 454207109 in words is "four hundred fifty-four million, two hundred seven thousand, one hundred nine".