109225009 has 8 divisors (see below), whose sum is σ = 111709512. Its totient is φ = 106767360.

The previous prime is 109225003. The next prime is 109225033. The reversal of 109225009 is 900522901.

It can be written as a sum of positive squares in 4 ways, for example, as 21390625 + 87834384 = 4625^2 + 9372^2 .

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 109225009 - 2³ = 109225001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109225001) 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, 1629 + ... + 14869.

It is an arithmetic number, because the mean of its divisors is an integer number (13963689).

Almost surely, 2^109225009 is an apocalyptic number.

It is an amenable number.

109225009 is a deficient number, since it is larger than the sum of its proper divisors (2484503).

109225009 is a wasteful number, since it uses less digits than its factorization.

109225009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13427.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 109225009 is about 10451.0769301541. The cubic root of 109225009 is about 478.0140880986.

It can be divided in two parts, 10922 and 5009, that added together give a triangular number (15931 = T₁₇₈).

The spelling of 109225009 in words is "one hundred nine million, two hundred twenty-five thousand, nine".