104311505 has 4 divisors (see below), whose sum is σ = 125173812. Its totient is φ = 83449200.

The previous prime is 104311481. The next prime is 104311513. The reversal of 104311505 is 505113401.

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

It can be written as a sum of positive squares in 2 ways, for example, as 40806544 + 63504961 = 6388^2 + 7969^2 .

It is not a de Polignac number, because 104311505 - 2²⁴ = 87534289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10431146 + ... + 10431155.

It is an arithmetic number, because the mean of its divisors is an integer number (31293453).

Almost surely, 2^104311505 is an apocalyptic number.

It is an amenable number.

104311505 is a deficient number, since it is larger than the sum of its proper divisors (20862307).

104311505 is an equidigital number, since it uses as much as digits as its factorization.

104311505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20862306.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 104311505 is about 10213.3003970313. The cubic root of 104311505 is about 470.7359903877.

Adding to 104311505 its reverse (505113401), we get a palindrome (609424906).

The spelling of 104311505 in words is "one hundred four million, three hundred eleven thousand, five hundred five".