104837981 has 2 divisors, whose sum is σ = 104837982. Its totient is φ = 104837980.

The previous prime is 104837959. The next prime is 104837989. The reversal of 104837981 is 189738401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59059225 + 45778756 = 7685^2 + 6766^2 .

It is an emirp because it is prime and its reverse (189738401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 104837981 - 2⁶ = 104837917 is a prime.

It is a super-2 number, since 2×104837981² = 21982004520312722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104837989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52418990 + 52418991.

It is an arithmetic number, because the mean of its divisors is an integer number (52418991).

Almost surely, 2^104837981 is an apocalyptic number.

It is an amenable number.

104837981 is a deficient number, since it is larger than the sum of its proper divisors (1).

104837981 is an equidigital number, since it uses as much as digits as its factorization.

104837981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 104837981 is about 10239.0419962026. The cubic root of 104837981 is about 471.5266203993.

The spelling of 104837981 in words is "one hundred four million, eight hundred thirty-seven thousand, nine hundred eighty-one".