104243155 has 4 divisors (see below), whose sum is σ = 125091792. Its totient is φ = 83394520.

The previous prime is 104243143. The next prime is 104243203. The reversal of 104243155 is 551342401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 551342401 = 347 ⋅1588883.

It is not a de Polignac number, because 104243155 - 2¹¹ = 104241107 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 10424311 + ... + 10424320.

It is an arithmetic number, because the mean of its divisors is an integer number (31272948).

Almost surely, 2^104243155 is an apocalyptic number.

104243155 is a deficient number, since it is larger than the sum of its proper divisors (20848637).

104243155 is an equidigital number, since it uses as much as digits as its factorization.

104243155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20848636.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 104243155 is about 10209.9537217365. The cubic root of 104243155 is about 470.6331515078.

Adding to 104243155 its reverse (551342401), we get a palindrome (655585556).

The spelling of 104243155 in words is "one hundred four million, two hundred forty-three thousand, one hundred fifty-five".