104931605 has 8 divisors (see below), whose sum is σ = 126048312. Its totient is φ = 83858368.

The previous prime is 104931571. The next prime is 104931643. The reversal of 104931605 is 506139401.

It can be written as a sum of positive squares in 4 ways, for example, as 13557124 + 91374481 = 3682^2 + 9559^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 104931605 - 2²⁰ = 103883029 is a prime.

It is a super-2 number, since 2×104931605² = 22021283455752050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5294 + ... + 15423.

It is an arithmetic number, because the mean of its divisors is an integer number (15756039).

Almost surely, 2^104931605 is an apocalyptic number.

It is an amenable number.

104931605 is a deficient number, since it is larger than the sum of its proper divisors (21116707).

104931605 is a wasteful number, since it uses less digits than its factorization.

104931605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21735.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 104931605 is about 10243.6128880391. The cubic root of 104931605 is about 471.6669419158. Note that the first 3 decimals are identical.

The spelling of 104931605 in words is "one hundred four million, nine hundred thirty-one thousand, six hundred five".