104137609 has 2 divisors, whose sum is σ = 104137610. Its totient is φ = 104137608.

The previous prime is 104137601. The next prime is 104137667. The reversal of 104137609 is 906731401.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70090384 + 34047225 = 8372^2 + 5835^2 .

It is a cyclic number.

It is not a de Polignac number, because 104137609 - 2³ = 104137601 is a prime.

It is a super-4 number, since 4×104137609⁴ (a number of 33 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (104137601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52068804 + 52068805.

It is an arithmetic number, because the mean of its divisors is an integer number (52068805).

Almost surely, 2^104137609 is an apocalyptic number.

It is an amenable number.

104137609 is a deficient number, since it is larger than the sum of its proper divisors (1).

104137609 is an equidigital number, since it uses as much as digits as its factorization.

104137609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 104137609 is about 10204.7836331791. The cubic root of 104137609 is about 470.4742594737.

The spelling of 104137609 in words is "one hundred four million, one hundred thirty-seven thousand, six hundred nine".