104048981 has 4 divisors (see below), whose sum is σ = 105754764. Its totient is φ = 102343200.

The previous prime is 104048909. The next prime is 104048999. The reversal of 104048981 is 189840401.

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 34409956 + 69639025 = 5866^2 + 8345^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104048981 is a prime.

It is a super-2 number, since 2×104048981² = 21652380894276722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104048081) 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, 852800 + ... + 852921.

It is an arithmetic number, because the mean of its divisors is an integer number (26438691).

Almost surely, 2^104048981 is an apocalyptic number.

It is an amenable number.

104048981 is a deficient number, since it is larger than the sum of its proper divisors (1705783).

104048981 is an equidigital number, since it uses as much as digits as its factorization.

104048981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1705782.

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 104048981 is about 10200.4402355977. The cubic root of 104048981 is about 470.3407533444.

The spelling of 104048981 in words is "one hundred four million, forty-eight thousand, nine hundred eighty-one".