109425217 has 8 divisors (see below), whose sum is σ = 120285792. Its totient is φ = 98716800.

The previous prime is 109425181. The next prime is 109425221. The reversal of 109425217 is 712524901.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109425217 is a prime.

It is a super-3 number, since 3×109425217³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (109425227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36528 + ... + 39409.

It is an arithmetic number, because the mean of its divisors is an integer number (15035724).

Almost surely, 2^109425217 is an apocalyptic number.

It is an amenable number.

109425217 is a deficient number, since it is larger than the sum of its proper divisors (10860575).

109425217 is a wasteful number, since it uses less digits than its factorization.

109425217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76079.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 109425217 is about 10460.6508879706. The cubic root of 109425217 is about 478.3059743350.

The spelling of 109425217 in words is "one hundred nine million, four hundred twenty-five thousand, two hundred seventeen".