109027745 has 4 divisors (see below), whose sum is σ = 130833300. Its totient is φ = 87222192.

The previous prime is 109027741. The next prime is 109027769. The reversal of 109027745 is 547720901.

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 42719296 + 66308449 = 6536^2 + 8143^2 .

It is a cyclic number.

It is not a de Polignac number, because 109027745 - 2² = 109027741 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (109027741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10902770 + ... + 10902779.

It is an arithmetic number, because the mean of its divisors is an integer number (32708325).

Almost surely, 2^109027745 is an apocalyptic number.

It is an amenable number.

109027745 is a deficient number, since it is larger than the sum of its proper divisors (21805555).

109027745 is an equidigital number, since it uses as much as digits as its factorization.

109027745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21805554.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 109027745 is about 10441.6351688804. The cubic root of 109027745 is about 477.7261449020.

The spelling of 109027745 in words is "one hundred nine million, twenty-seven thousand, seven hundred forty-five".