104274561 has 4 divisors (see below), whose sum is σ = 139032752. Its totient is φ = 69516372.

The previous prime is 104274557. The next prime is 104274563. The reversal of 104274561 is 165472401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 104274561 - 2² = 104274557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104274563) 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, 17379091 + ... + 17379096.

It is an arithmetic number, because the mean of its divisors is an integer number (34758188).

Almost surely, 2^104274561 is an apocalyptic number.

It is an amenable number.

104274561 is a deficient number, since it is larger than the sum of its proper divisors (34758191).

104274561 is an equidigital number, since it uses as much as digits as its factorization.

104274561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34758190.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 104274561 is about 10211.4916148426. The cubic root of 104274561 is about 470.6804103123.

The spelling of 104274561 in words is "one hundred four million, two hundred seventy-four thousand, five hundred sixty-one".