104387081 has 2 divisors, whose sum is σ = 104387082. Its totient is φ = 104387080.

The previous prime is 104387077. The next prime is 104387099. The reversal of 104387081 is 180783401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90630400 + 13756681 = 9520^2 + 3709^2 .

It is an emirp because it is prime and its reverse (180783401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 104387081 - 2² = 104387077 is a prime.

It is a super-2 number, since 2×104387081² = 21793325359401122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (104387281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52193540 + 52193541.

It is an arithmetic number, because the mean of its divisors is an integer number (52193541).

Almost surely, 2^104387081 is an apocalyptic number.

It is an amenable number.

104387081 is a deficient number, since it is larger than the sum of its proper divisors (1).

104387081 is an equidigital number, since it uses as much as digits as its factorization.

104387081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 104387081 is about 10216.9996084956. Note that the first 3 decimals coincide. The cubic root of 104387081 is about 470.8496491662.

The spelling of 104387081 in words is "one hundred four million, three hundred eighty-seven thousand, eighty-one".