104815481 has 4 divisors (see below), whose sum is σ = 104881764. Its totient is φ = 104749200.

The previous prime is 104815463. The next prime is 104815573. The reversal of 104815481 is 184518401.

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: 184518401 = 853 ⋅216317.

It can be written as a sum of positive squares in 2 ways, for example, as 32718400 + 72097081 = 5720^2 + 8491^2 .

It is a cyclic number.

It is not a de Polignac number, because 104815481 - 2²² = 100621177 is a prime.

It is a super-2 number, since 2×104815481² = 21972570114522722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104815441) 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, 30710 + ... + 33951.

It is an arithmetic number, because the mean of its divisors is an integer number (26220441).

Almost surely, 2^104815481 is an apocalyptic number.

It is an amenable number.

104815481 is a deficient number, since it is larger than the sum of its proper divisors (66283).

104815481 is an equidigital number, since it uses as much as digits as its factorization.

104815481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66282.

The product of its (nonzero) digits is 5120, while the sum is 32.

The square root of 104815481 is about 10237.9432016397. The cubic root of 104815481 is about 471.4928854624.

The spelling of 104815481 in words is "one hundred four million, eight hundred fifteen thousand, four hundred eighty-one".