104109881 has 2 divisors, whose sum is σ = 104109882. Its totient is φ = 104109880.

The previous prime is 104109871. The next prime is 104109977. The reversal of 104109881 is 188901401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103632400 + 477481 = 10180^2 + 691^2 .

It is a cyclic number.

It is not a de Polignac number, because 104109881 - 2¹⁰ = 104108857 is a prime.

It is a super-2 number, since 2×104109881² = 21677734643668322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (104109871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52054940 + 52054941.

It is an arithmetic number, because the mean of its divisors is an integer number (52054941).

Almost surely, 2^104109881 is an apocalyptic number.

It is an amenable number.

104109881 is a deficient number, since it is larger than the sum of its proper divisors (1).

104109881 is an equidigital number, since it uses as much as digits as its factorization.

104109881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 32.

The square root of 104109881 is about 10203.4249641971. The cubic root of 104109881 is about 470.4324991261.

The spelling of 104109881 in words is "one hundred four million, one hundred nine thousand, eight hundred eighty-one".