109574609 has 2 divisors, whose sum is σ = 109574610. Its totient is φ = 109574608.

The previous prime is 109574587. The next prime is 109574611. The reversal of 109574609 is 906475901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106667584 + 2907025 = 10328^2 + 1705^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109574609 is a prime.

It is a Sophie Germain prime.

Together with 109574611, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (109574669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54787304 + 54787305.

It is an arithmetic number, because the mean of its divisors is an integer number (54787305).

Almost surely, 2^109574609 is an apocalyptic number.

It is an amenable number.

109574609 is a deficient number, since it is larger than the sum of its proper divisors (1).

109574609 is an equidigital number, since it uses as much as digits as its factorization.

109574609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 109574609 is about 10467.7891170963. The cubic root of 109574609 is about 478.5235432978.

The spelling of 109574609 in words is "one hundred nine million, five hundred seventy-four thousand, six hundred nine".