100144209 has 16 divisors (see below), whose sum is σ = 145833984. Its totient is φ = 60622800.

The previous prime is 100144201. The next prime is 100144217. The reversal of 100144209 is 902441001.

It is an interprime number because it is at equal distance from previous prime (100144201) and next prime (100144217).

It is not a de Polignac number, because 100144209 - 2³ = 100144201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100144201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47512 + ... + 49574.

It is an arithmetic number, because the mean of its divisors is an integer number (9114624).

Almost surely, 2^100144209 is an apocalyptic number.

It is an amenable number.

100144209 is a deficient number, since it is larger than the sum of its proper divisors (45689775).

100144209 is a wasteful number, since it uses less digits than its factorization.

100144209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3548.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 100144209 is about 10007.2078523432. The cubic root of 100144209 is about 464.3818958223.

The spelling of 100144209 in words is "one hundred million, one hundred forty-four thousand, two hundred nine".