109136305 has 4 divisors (see below), whose sum is σ = 130963572. Its totient is φ = 87309040.

The previous prime is 109136297. The next prime is 109136317. The reversal of 109136305 is 503631901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 503631901 = 37 ⋅13611673.

It can be written as a sum of positive squares in 2 ways, for example, as 66194496 + 42941809 = 8136^2 + 6553^2 .

It is not a de Polignac number, because 109136305 - 2³ = 109136297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 10913626 + ... + 10913635.

It is an arithmetic number, because the mean of its divisors is an integer number (32740893).

Almost surely, 2^109136305 is an apocalyptic number.

It is an amenable number.

109136305 is a deficient number, since it is larger than the sum of its proper divisors (21827267).

109136305 is an equidigital number, since it uses as much as digits as its factorization.

109136305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21827266.

The product of its (nonzero) digits is 2430, while the sum is 28.

The square root of 109136305 is about 10446.8322950069. The cubic root of 109136305 is about 477.8846511815.

The spelling of 109136305 in words is "one hundred nine million, one hundred thirty-six thousand, three hundred five".