109346945 has 12 divisors (see below), whose sum is σ = 137172756. Its totient is φ = 83672160.

The previous prime is 109346933. The next prime is 109346971. The reversal of 109346945 is 549643901.

It can be written as a sum of positive squares in 2 ways, for example, as 28472896 + 80874049 = 5336^2 + 8993^2 .

It is not a de Polignac number, because 109346945 - 2⁴ = 109346929 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 (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18026 + ... + 23315.

It is an arithmetic number, because the mean of its divisors is an integer number (11431063).

Almost surely, 2^109346945 is an apocalyptic number.

It is an amenable number.

109346945 is a deficient number, since it is larger than the sum of its proper divisors (27825811).

109346945 is an equidigital number, since it uses as much as digits as its factorization.

109346945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41392 (or 41369 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 109346945 is about 10456.9089601086. The cubic root of 109346945 is about 478.1919028370.

The spelling of 109346945 in words is "one hundred nine million, three hundred forty-six thousand, nine hundred forty-five".