109029217 has 4 divisors (see below), whose sum is σ = 118940976. Its totient is φ = 99117460.

The previous prime is 109029187. The next prime is 109029229. The reversal of 109029217 is 712920901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 109029217 - 2¹⁵ = 108996449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109021217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4955863 + ... + 4955884.

It is an arithmetic number, because the mean of its divisors is an integer number (29735244).

Almost surely, 2^109029217 is an apocalyptic number.

It is an amenable number.

109029217 is a deficient number, since it is larger than the sum of its proper divisors (9911759).

109029217 is an equidigital number, since it uses as much as digits as its factorization.

109029217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9911758.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 109029217 is about 10441.7056556867. The cubic root of 109029217 is about 477.7282948432.

The spelling of 109029217 in words is "one hundred nine million, twenty-nine thousand, two hundred seventeen".