109184645 has 6 divisors (see below), whose sum is σ = 131049618. Its totient is φ = 87329024.

The previous prime is 109184629. The next prime is 109184671. The reversal of 109184645 is 546481901.

It can be written as a sum of positive squares in 3 ways, for example, as 67207204 + 41977441 = 8198^2 + 6479^2 .

It is not a de Polignac number, because 109184645 - 2⁴ = 109184629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 109184599 and 109184608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21029 + ... + 25701.

It is an arithmetic number, because the mean of its divisors is an integer number (21841603).

Almost surely, 2^109184645 is an apocalyptic number.

It is an amenable number.

109184645 is a deficient number, since it is larger than the sum of its proper divisors (21864973).

109184645 is an frugal number, since it uses more digits than its factorization.

109184645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9351 (or 4678 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 109184645 is about 10449.1456588565. The cubic root of 109184645 is about 477.9551976239.

The spelling of 109184645 in words is "one hundred nine million, one hundred eighty-four thousand, six hundred forty-five".