103421585 has 4 divisors (see below), whose sum is σ = 124105908. Its totient is φ = 82737264.

The previous prime is 103421581. The next prime is 103421609. The reversal of 103421585 is 585124301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 585124301 = 23 ⋅25440187.

It can be written as a sum of positive squares in 2 ways, for example, as 77299264 + 26122321 = 8792^2 + 5111^2 .

It is a cyclic number.

It is not a de Polignac number, because 103421585 - 2² = 103421581 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (103421581) 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 in 3 ways as a sum of consecutive naturals, for example, 10342154 + ... + 10342163.

It is an arithmetic number, because the mean of its divisors is an integer number (31026477).

Almost surely, 2^103421585 is an apocalyptic number.

It is an amenable number.

103421585 is a deficient number, since it is larger than the sum of its proper divisors (20684323).

103421585 is an equidigital number, since it uses as much as digits as its factorization.

103421585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20684322.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 103421585 is about 10169.6403574561. The cubic root of 103421585 is about 469.3934910975.

Adding to 103421585 its reverse (585124301), we get a palindrome (688545886).

The spelling of 103421585 in words is "one hundred three million, four hundred twenty-one thousand, five hundred eighty-five".