109438349 has 4 divisors (see below), whose sum is σ = 109641180. Its totient is φ = 109235520.

The previous prime is 109438337. The next prime is 109438369. The reversal of 109438349 is 943834901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 943834901 = 227 ⋅4157863.

It can be written as a sum of positive squares in 2 ways, for example, as 26081449 + 83356900 = 5107^2 + 9130^2 .

It is a cyclic number.

It is not a de Polignac number, because 109438349 - 2⁸ = 109438093 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109438319) 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, 100604 + ... + 101685.

It is an arithmetic number, because the mean of its divisors is an integer number (27410295).

Almost surely, 2^109438349 is an apocalyptic number.

It is an amenable number.

109438349 is a deficient number, since it is larger than the sum of its proper divisors (202831).

109438349 is an equidigital number, since it uses as much as digits as its factorization.

109438349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202830.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 109438349 is about 10461.2785547465. The cubic root of 109438349 is about 478.3251072277.

The spelling of 109438349 in words is "one hundred nine million, four hundred thirty-eight thousand, three hundred forty-nine".