104985081 has 12 divisors (see below), whose sum is σ = 160565652. Its totient is φ = 65872896.

The previous prime is 104985077. The next prime is 104985091. The reversal of 104985081 is 180589401.

It can be written as a sum of positive squares in 2 ways, for example, as 38007225 + 66977856 = 6165^2 + 8184^2 .

It is not a de Polignac number, because 104985081 - 2² = 104985077 is a prime.

It is a super-2 number, since 2×104985081² = 22043734465153122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (104985061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 342936 + ... + 343241.

It is an arithmetic number, because the mean of its divisors is an integer number (13380471).

Almost surely, 2^104985081 is an apocalyptic number.

It is an amenable number.

104985081 is a deficient number, since it is larger than the sum of its proper divisors (55580571).

104985081 is a wasteful number, since it uses less digits than its factorization.

104985081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686200 (or 686197 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 104985081 is about 10246.2227674397. Note that the first 3 decimals coincide. The cubic root of 104985081 is about 471.7470530760.

The spelling of 104985081 in words is "one hundred four million, nine hundred eighty-five thousand, eighty-one".