104136523 has 4 divisors (see below), whose sum is σ = 104204880. Its totient is φ = 104068168.

The previous prime is 104136499. The next prime is 104136541. The reversal of 104136523 is 325631401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 104136523 - 2¹³ = 104128331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104136553) 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, 31840 + ... + 34957.

It is an arithmetic number, because the mean of its divisors is an integer number (26051220).

Almost surely, 2^104136523 is an apocalyptic number.

104136523 is a deficient number, since it is larger than the sum of its proper divisors (68357).

104136523 is an equidigital number, since it uses as much as digits as its factorization.

104136523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68356.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 104136523 is about 10204.7304227010. The cubic root of 104136523 is about 470.4726240197.

Adding to 104136523 its reverse (325631401), we get a palindrome (429767924).

The spelling of 104136523 in words is "one hundred four million, one hundred thirty-six thousand, five hundred twenty-three".