100468009 has 2 divisors, whose sum is σ = 100468010. Its totient is φ = 100468008.

The previous prime is 100468007. The next prime is 100468031. The reversal of 100468009 is 900864001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93026025 + 7441984 = 9645^2 + 2728^2 .

It is an emirp because it is prime and its reverse (900864001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100468009 - 2¹ = 100468007 is a prime.

Together with 100468007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (100468007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50234004 + 50234005.

It is an arithmetic number, because the mean of its divisors is an integer number (50234005).

Almost surely, 2^100468009 is an apocalyptic number.

It is an amenable number.

100468009 is a deficient number, since it is larger than the sum of its proper divisors (1).

100468009 is an equidigital number, since it uses as much as digits as its factorization.

100468009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 100468009 is about 10023.3731348284. The cubic root of 100468009 is about 464.8818584515.

The spelling of 100468009 in words is "one hundred million, four hundred sixty-eight thousand, nine".