104402261 has 2 divisors, whose sum is σ = 104402262. Its totient is φ = 104402260.

The previous prime is 104402257. The next prime is 104402269. The reversal of 104402261 is 162204401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74218225 + 30184036 = 8615^2 + 5494^2 .

It is a cyclic number.

It is not a de Polignac number, because 104402261 - 2² = 104402257 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104402269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52201130 + 52201131.

It is an arithmetic number, because the mean of its divisors is an integer number (52201131).

Almost surely, 2^104402261 is an apocalyptic number.

It is an amenable number.

104402261 is a deficient number, since it is larger than the sum of its proper divisors (1).

104402261 is an equidigital number, since it uses as much as digits as its factorization.

104402261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 104402261 is about 10217.7424610332. The cubic root of 104402261 is about 470.8724717580.

Adding to 104402261 its reverse (162204401), we get a palindrome (266606662).

The spelling of 104402261 in words is "one hundred four million, four hundred two thousand, two hundred sixty-one".