104782281 has 8 divisors (see below), whose sum is σ = 141279840. Its totient is φ = 69069792.

The previous prime is 104782277. The next prime is 104782343. The reversal of 104782281 is 182287401.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 104782281 - 2² = 104782277 is a prime.

It is a super-2 number, since 2×104782281² = 21958652823125922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (104782081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195955 + ... + 196488.

It is an arithmetic number, because the mean of its divisors is an integer number (17659980).

Almost surely, 2^104782281 is an apocalyptic number.

It is an amenable number.

104782281 is a deficient number, since it is larger than the sum of its proper divisors (36497559).

104782281 is an equidigital number, since it uses as much as digits as its factorization.

104782281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392535.

The product of its (nonzero) digits is 7168, while the sum is 33.

The square root of 104782281 is about 10236.3216537973. The cubic root of 104782281 is about 471.4430988702.

The spelling of 104782281 in words is "one hundred four million, seven hundred eighty-two thousand, two hundred eighty-one".