104043013 has 4 divisors (see below), whose sum is σ = 104430060. Its totient is φ = 103655968.

The previous prime is 104043011. The next prime is 104043041. The reversal of 104043013 is 310340401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310340401 = 7 ⋅44334343.

It can be written as a sum of positive squares in 2 ways, for example, as 46009089 + 58033924 = 6783^2 + 7618^2 .

It is a cyclic number.

It is not a de Polignac number, because 104043013 - 2¹ = 104043011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104043011) 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, 193120 + ... + 193657.

It is an arithmetic number, because the mean of its divisors is an integer number (26107515).

Almost surely, 2^104043013 is an apocalyptic number.

It is an amenable number.

104043013 is a deficient number, since it is larger than the sum of its proper divisors (387047).

104043013 is an equidigital number, since it uses as much as digits as its factorization.

104043013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387046.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 104043013 is about 10200.1476950091. The cubic root of 104043013 is about 470.3317606333.

Adding to 104043013 its reverse (310340401), we get a palindrome (414383414).

The spelling of 104043013 in words is "one hundred four million, forty-three thousand, thirteen".