30909109 has 8 divisors (see below), whose sum is σ = 38536128. Its totient is φ = 24084960.

The previous prime is 30909089. The next prime is 30909113. The reversal of 30909109 is 90190903.

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 30909109 - 2¹¹ = 30907061 is a prime.

It is a super-3 number, since 3×30909109³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30909119) 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, 200632 + ... + 200785.

It is an arithmetic number, because the mean of its divisors is an integer number (4817016).

Almost surely, 2^30909109 is an apocalyptic number.

It is an amenable number.

30909109 is a deficient number, since it is larger than the sum of its proper divisors (7627019).

30909109 is a wasteful number, since it uses less digits than its factorization.

30909109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401435.

The product of its (nonzero) digits is 2187, while the sum is 31.

The square root of 30909109 is about 5559.5961184244. The cubic root of 30909109 is about 313.8307504729.

The spelling of 30909109 in words is "thirty million, nine hundred nine thousand, one hundred nine".