109577 has 4 divisors (see below), whose sum is σ = 118020. Its totient is φ = 101136.

The previous prime is 109567. The next prime is 109579. The reversal of 109577 is 775901.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17161 + 92416 = 131^2 + 304^2 .

It is a cyclic number.

It is not a de Polignac number, because 109577 - 2⁸ = 109321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4202 + ... + 4227.

It is an arithmetic number, because the mean of its divisors is an integer number (29505).

2¹⁰⁹⁵⁷⁷ is an apocalyptic number.

It is an amenable number.

109577 is a deficient number, since it is larger than the sum of its proper divisors (8443).

109577 is an equidigital number, since it uses as much as digits as its factorization.

109577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8442.

The product of its (nonzero) digits is 2205, while the sum is 29.

The square root of 109577 is about 331.0241683020. The cubic root of 109577 is about 47.8527023853.

It can be divided in two parts, 109 and 577, that added together give a palindrome (686).

The spelling of 109577 in words is "one hundred nine thousand, five hundred seventy-seven".