104228581 has 16 divisors (see below), whose sum is σ = 116348400. Its totient is φ = 92904448.

The previous prime is 104228573. The next prime is 104228587. The reversal of 104228581 is 185822401.

It can be written as a sum of positive squares in 8 ways, for example, as 6890625 + 97337956 = 2625^2 + 9866^2 .

It is a cyclic number.

It is not a de Polignac number, because 104228581 - 2³ = 104228573 is a prime.

It is a super-2 number, since 2×104228581² = 21727194194547122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104228587) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24135 + ... + 28123.

It is an arithmetic number, because the mean of its divisors is an integer number (7271775).

Almost surely, 2^104228581 is an apocalyptic number.

It is an amenable number.

104228581 is a deficient number, since it is larger than the sum of its proper divisors (12119819).

104228581 is a wasteful number, since it uses less digits than its factorization.

104228581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4088.

The product of its (nonzero) digits is 5120, while the sum is 31.

The square root of 104228581 is about 10209.2399815069. The cubic root of 104228581 is about 470.6112177664.

The spelling of 104228581 in words is "one hundred four million, two hundred twenty-eight thousand, five hundred eighty-one".