104302581 has 4 divisors (see below), whose sum is σ = 139070112. Its totient is φ = 69535052.

The previous prime is 104302579. The next prime is 104302591. The reversal of 104302581 is 185203401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 185203401 = 3 ⋅61734467.

It is a cyclic number.

It is not a de Polignac number, because 104302581 - 2¹ = 104302579 is a prime.

It is a super-2 number, since 2×104302581² = 21758056806523122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104302591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17383761 + ... + 17383766.

It is an arithmetic number, because the mean of its divisors is an integer number (34767528).

Almost surely, 2^104302581 is an apocalyptic number.

It is an amenable number.

104302581 is a deficient number, since it is larger than the sum of its proper divisors (34767531).

104302581 is an equidigital number, since it uses as much as digits as its factorization.

104302581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34767530.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 104302581 is about 10212.8635063825. The cubic root of 104302581 is about 470.7225659568.

Adding to 104302581 its reverse (185203401), we get a palindrome (289505982).

The spelling of 104302581 in words is "one hundred four million, three hundred two thousand, five hundred eighty-one".