109455449 has 2 divisors, whose sum is σ = 109455450. Its totient is φ = 109455448.

The previous prime is 109455439. The next prime is 109455461. The reversal of 109455449 is 944554901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104755225 + 4700224 = 10235^2 + 2168^2 .

It is a cyclic number.

It is not a de Polignac number, because 109455449 - 2²⁴ = 92678233 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (109455439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54727724 + 54727725.

It is an arithmetic number, because the mean of its divisors is an integer number (54727725).

Almost surely, 2^109455449 is an apocalyptic number.

It is an amenable number.

109455449 is a deficient number, since it is larger than the sum of its proper divisors (1).

109455449 is an equidigital number, since it uses as much as digits as its factorization.

109455449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 109455449 is about 10462.0958225396. The cubic root of 109455449 is about 478.3500190720.

The spelling of 109455449 in words is "one hundred nine million, four hundred fifty-five thousand, four hundred forty-nine".