104056621 has 2 divisors, whose sum is σ = 104056622. Its totient is φ = 104056620.

The previous prime is 104056619. The next prime is 104056627. The reversal of 104056621 is 126650401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96138025 + 7918596 = 9805^2 + 2814^2 .

It is a cyclic number.

It is not a de Polignac number, because 104056621 - 2¹ = 104056619 is a prime.

Together with 104056619, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104056627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52028310 + 52028311.

It is an arithmetic number, because the mean of its divisors is an integer number (52028311).

Almost surely, 2^104056621 is an apocalyptic number.

It is an amenable number.

104056621 is a deficient number, since it is larger than the sum of its proper divisors (1).

104056621 is an equidigital number, since it uses as much as digits as its factorization.

104056621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 104056621 is about 10200.8147223641. The cubic root of 104056621 is about 470.3522649593.

The spelling of 104056621 in words is "one hundred four million, fifty-six thousand, six hundred twenty-one".