109440549 has 6 divisors (see below), whose sum is σ = 158080806. Its totient is φ = 72960360.

The previous prime is 109440523. The next prime is 109440553. The reversal of 109440549 is 945044901.

It is a happy number.

109440549 is a `hidden beast` number, since 109 + 4 + 4 + 0 + 549 = 666.

It can be written as a sum of positive squares in only one way, i.e., 65124900 + 44315649 = 8070^2 + 6657^2 .

It is not a de Polignac number, because 109440549 - 2¹¹ = 109438501 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109447549) 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, 6080022 + ... + 6080039.

It is an arithmetic number, because the mean of its divisors is an integer number (26346801).

Almost surely, 2^109440549 is an apocalyptic number.

It is an amenable number.

109440549 is a deficient number, since it is larger than the sum of its proper divisors (48640257).

109440549 is a wasteful number, since it uses less digits than its factorization.

109440549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12160067 (or 12160064 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 109440549 is about 10461.3837038893. The cubic root of 109440549 is about 478.3283124057.

The spelling of 109440549 in words is "one hundred nine million, four hundred forty thousand, five hundred forty-nine".