109609361 has 4 divisors (see below), whose sum is σ = 110183424. Its totient is φ = 109035300.

The previous prime is 109609351. The next prime is 109609369. The reversal of 109609361 is 163906901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109609361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109609369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286745 + ... + 287126.

It is an arithmetic number, because the mean of its divisors is an integer number (27545856).

Almost surely, 2^109609361 is an apocalyptic number.

It is an amenable number.

109609361 is a deficient number, since it is larger than the sum of its proper divisors (574063).

109609361 is an equidigital number, since it uses as much as digits as its factorization.

109609361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574062.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 109609361 is about 10469.4489348771. The cubic root of 109609361 is about 478.5741264654.

The spelling of 109609361 in words is "one hundred nine million, six hundred nine thousand, three hundred sixty-one".