109449 has 6 divisors (see below), whose sum is σ = 158106. Its totient is φ = 72960.

The previous prime is 109441. The next prime is 109451. The reversal of 109449 is 944901.

It can be written as a sum of positive squares in only one way, i.e., 81225 + 28224 = 285^2 + 168^2 .

It is not a de Polignac number, because 109449 - 2³ = 109441 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6072 + ... + 6089.

It is an arithmetic number, because the mean of its divisors is an integer number (26351).

2¹⁰⁹⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

109449 is a deficient number, since it is larger than the sum of its proper divisors (48657).

109449 is a wasteful number, since it uses less digits than its factorization.

109449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12167 (or 12164 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 109449 is about 330.8307724502. The cubic root of 109449 is about 47.8340624261.

The spelling of 109449 in words is "one hundred nine thousand, four hundred forty-nine".