109056545 has 12 divisors (see below), whose sum is σ = 141710076. Its totient is φ = 80533440.

The previous prime is 109056533. The next prime is 109056611. The reversal of 109056545 is 545650901.

It can be written as a sum of positive squares in 6 ways, for example, as 9296401 + 99760144 = 3049^2 + 9988^2 .

It is not a de Polignac number, because 109056545 - 2⁴ = 109056529 is a prime.

It is an alternating number because its digits alternate between odd and even.

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, 63686 + ... + 65375.

It is an arithmetic number, because the mean of its divisors is an integer number (11809173).

Almost surely, 2^109056545 is an apocalyptic number.

It is an amenable number.

109056545 is a deficient number, since it is larger than the sum of its proper divisors (32653531).

109056545 is a wasteful number, since it uses less digits than its factorization.

109056545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129092 (or 129079 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 109056545 is about 10443.0141721631. The cubic root of 109056545 is about 477.7682054549.

The spelling of 109056545 in words is "one hundred nine million, fifty-six thousand, five hundred forty-five".