100227609 has 12 divisors (see below), whose sum is σ = 145733952. Its totient is φ = 66375000.

The previous prime is 100227593. The next prime is 100227623. The reversal of 100227609 is 906722001.

It is not a de Polignac number, because 100227609 - 2⁴ = 100227593 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100227689) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35517 + ... + 38234.

It is an arithmetic number, because the mean of its divisors is an integer number (12144496).

Almost surely, 2^100227609 is an apocalyptic number.

It is an amenable number.

100227609 is a deficient number, since it is larger than the sum of its proper divisors (45506343).

100227609 is a wasteful number, since it uses less digits than its factorization.

100227609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73908 (or 73905 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 100227609 is about 10011.3739816271. The cubic root of 100227609 is about 464.5107723168.

The spelling of 100227609 in words is "one hundred million, two hundred twenty-seven thousand, six hundred nine".