109448309 has 2 divisors, whose sum is σ = 109448310. Its totient is φ = 109448308.

The previous prime is 109448281. The next prime is 109448351. The reversal of 109448309 is 903844901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66178225 + 43270084 = 8135^2 + 6578^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109448309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109448359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54724154 + 54724155.

It is an arithmetic number, because the mean of its divisors is an integer number (54724155).

Almost surely, 2^109448309 is an apocalyptic number.

It is an amenable number.

109448309 is a deficient number, since it is larger than the sum of its proper divisors (1).

109448309 is an equidigital number, since it uses as much as digits as its factorization.

109448309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 109448309 is about 10461.7545851544. The cubic root of 109448309 is about 478.3396175999.

The spelling of 109448309 in words is "one hundred nine million, four hundred forty-eight thousand, three hundred nine".