109446217 has 4 divisors (see below), whose sum is σ = 109467540. Its totient is φ = 109424896.

The previous prime is 109446209. The next prime is 109446241. The reversal of 109446217 is 712644901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 712644901 = 37 ⋅19260673.

It can be written as a sum of positive squares in 2 ways, for example, as 69705801 + 39740416 = 8349^2 + 6304^2 .

It is a cyclic number.

It is not a de Polignac number, because 109446217 - 2³ = 109446209 is a prime.

It is a super-2 number, since 2×109446217² = 23956948831222178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109446817) 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, 2253 + ... + 14965.

It is an arithmetic number, because the mean of its divisors is an integer number (27366885).

Almost surely, 2^109446217 is an apocalyptic number.

It is an amenable number.

109446217 is a deficient number, since it is larger than the sum of its proper divisors (21323).

109446217 is an equidigital number, since it uses as much as digits as its factorization.

109446217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21322.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 109446217 is about 10461.6546014481. The cubic root of 109446217 is about 478.3365699120.

It can be divided in two parts, 10944 and 6217, that added together give a square (17161 = 131²).

The spelling of 109446217 in words is "one hundred nine million, four hundred forty-six thousand, two hundred seventeen".