100449 has 6 divisors (see below), whose sum is σ = 145106. Its totient is φ = 66960.

The previous prime is 100447. The next prime is 100459. The reversal of 100449 is 944001.

It can be written as a sum of positive squares in only one way, i.e., 57600 + 42849 = 240^2 + 207^2 .

It is not a de Polignac number, because 100449 - 2¹ = 100447 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 100449.

It is not an unprimeable number, because it can be changed into a prime (100447) 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, 5572 + ... + 5589.

2¹⁰⁰⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

100449 is a deficient number, since it is larger than the sum of its proper divisors (44657).

100449 is a wasteful number, since it uses less digits than its factorization.

100449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11167 (or 11164 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 100449 is about 316.9369022377. The cubic root of 100449 is about 46.4852537355.

The spelling of 100449 in words is "one hundred thousand, four hundred forty-nine".