104109312 has 36 divisors (see below), whose sum is σ = 277084640. Its totient is φ = 34702848.

The previous prime is 104109311. The next prime is 104109329. The reversal of 104109312 is 213901401.

It is a super-2 number, since 2×104109312² = 21677497690226688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104109311) 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, 67012 + ... + 68547.

Almost surely, 2^104109312 is an apocalyptic number.

104109312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

104109312 is an abundant number, since it is smaller than the sum of its proper divisors (172975328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

104109312 is an equidigital number, since it uses as much as digits as its factorization.

104109312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135578 (or 135564 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 104109312 is about 10203.3970813646. The cubic root of 104109312 is about 470.4316420938.

The spelling of 104109312 in words is "one hundred four million, one hundred nine thousand, three hundred twelve".