104144009 has 2 divisors, whose sum is σ = 104144010. Its totient is φ = 104144008.

The previous prime is 104144003. The next prime is 104144071. The reversal of 104144009 is 900441401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88303609 + 15840400 = 9397^2 + 3980^2 .

It is an emirp because it is prime and its reverse (900441401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 104144009 - 2²⁴ = 87366793 is a prime.

It is a super-2 number, since 2×104144009² = 21691949221184162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (104144003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52072004 + 52072005.

It is an arithmetic number, because the mean of its divisors is an integer number (52072005).

Almost surely, 2^104144009 is an apocalyptic number.

It is an amenable number.

104144009 is a deficient number, since it is larger than the sum of its proper divisors (1).

104144009 is an equidigital number, since it uses as much as digits as its factorization.

104144009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 104144009 is about 10205.0972067884. The cubic root of 104144009 is about 470.4838972777.

The spelling of 104144009 in words is "one hundred four million, one hundred forty-four thousand, nine".