109409331 has 24 divisors (see below), whose sum is σ = 157955184. Its totient is φ = 67325440.

The previous prime is 109409327. The next prime is 109409347. The reversal of 109409331 is 133904901.

It is not a de Polignac number, because 109409331 - 2² = 109409327 is a prime.

It is a super-2 number, since 2×109409331² = 23940803419735122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (109409371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44761 + ... + 47141.

It is an arithmetic number, because the mean of its divisors is an integer number (6581466).

Almost surely, 2^109409331 is an apocalyptic number.

109409331 is a deficient number, since it is larger than the sum of its proper divisors (48545853).

109409331 is a wasteful number, since it uses less digits than its factorization.

109409331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2471 (or 2454 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 109409331 is about 10459.8915386346. The cubic root of 109409331 is about 478.2828269087.

The spelling of 109409331 in words is "one hundred nine million, four hundred nine thousand, three hundred thirty-one".