104348509 has 4 divisors (see below), whose sum is σ = 104440320. Its totient is φ = 104256700.

The previous prime is 104348483. The next prime is 104348561. The reversal of 104348509 is 905843401.

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: 905843401 = 139 ⋅6516859.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104348509 is a prime.

It is a super-2 number, since 2×104348509² = 21777222661046162, 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 (104348599) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44179 + ... + 46480.

It is an arithmetic number, because the mean of its divisors is an integer number (26110080).

Almost surely, 2^104348509 is an apocalyptic number.

It is an amenable number.

104348509 is a deficient number, since it is larger than the sum of its proper divisors (91811).

104348509 is an equidigital number, since it uses as much as digits as its factorization.

104348509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91810.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 104348509 is about 10215.1117957661. Note that the first 3 decimals coincide. The cubic root of 104348509 is about 470.7916475759.

The spelling of 104348509 in words is "one hundred four million, three hundred forty-eight thousand, five hundred nine".