100009449 has 6 divisors (see below), whose sum is σ = 144458106. Its totient is φ = 66672960.

The previous prime is 100009433. The next prime is 100009477. The reversal of 100009449 is 944900001.

It can be written as a sum of positive squares in only one way, i.e., 72131049 + 27878400 = 8493^2 + 5280^2 .

It is not a de Polignac number, because 100009449 - 2⁴ = 100009433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100009499) 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, 5556072 + ... + 5556089.

It is an arithmetic number, because the mean of its divisors is an integer number (24076351).

Almost surely, 2^100009449 is an apocalyptic number.

It is an amenable number.

100009449 is a deficient number, since it is larger than the sum of its proper divisors (44448657).

100009449 is a wasteful number, since it uses less digits than its factorization.

100009449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11112167 (or 11112164 counting only the distinct ones).

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

The square root of 100009449 is about 10000.4724388401. The cubic root of 100009449 is about 464.1735023585.

The spelling of 100009449 in words is "one hundred million, nine thousand, four hundred forty-nine".