109771217 has 8 divisors (see below), whose sum is σ = 115948800. Its totient is φ = 103758480.

The previous prime is 109771201. The next prime is 109771223. The reversal of 109771217 is 712177901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 109771217 - 2⁴ = 109771201 is a prime.

It is a super-2 number, since 2×109771217² = 24099440163322178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109771297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39842 + ... + 42507.

It is an arithmetic number, because the mean of its divisors is an integer number (14493600).

Almost surely, 2^109771217 is an apocalyptic number.

It is an amenable number.

109771217 is a deficient number, since it is larger than the sum of its proper divisors (6177583).

109771217 is an equidigital number, since it uses as much as digits as its factorization.

109771217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82423.

The product of its (nonzero) digits is 6174, while the sum is 35.

The square root of 109771217 is about 10477.1760031031. The cubic root of 109771217 is about 478.8095747181.

The spelling of 109771217 in words is "one hundred nine million, seven hundred seventy-one thousand, two hundred seventeen".