104140861 has 32 divisors (see below), whose sum is σ = 126282240. Its totient is φ = 85081600.

The previous prime is 104140837. The next prime is 104140867. The reversal of 104140861 is 168041401.

It is not a de Polignac number, because 104140861 - 2⁷ = 104140733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104140867) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2215740 + ... + 2215786.

It is an arithmetic number, because the mean of its divisors is an integer number (3946320).

Almost surely, 2^104140861 is an apocalyptic number.

104140861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

104140861 is a deficient number, since it is larger than the sum of its proper divisors (22141379).

104140861 is an equidigital number, since it uses as much as digits as its factorization.

104140861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 104140861 is about 10204.9429689734. The cubic root of 104140861 is about 470.4791567322.

The spelling of 104140861 in words is "one hundred four million, one hundred forty thousand, eight hundred sixty-one".