104631643 has 2 divisors, whose sum is σ = 104631644. Its totient is φ = 104631642.

The previous prime is 104631601. The next prime is 104631649. The reversal of 104631643 is 346136401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 104631643 - 2²¹ = 102534491 is a prime.

It is not a weakly prime, because it can be changed into another prime (104631649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52315821 + 52315822.

It is an arithmetic number, because the mean of its divisors is an integer number (52315822).

Almost surely, 2^104631643 is an apocalyptic number.

104631643 is a deficient number, since it is larger than the sum of its proper divisors (1).

104631643 is an equidigital number, since it uses as much as digits as its factorization.

104631643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 104631643 is about 10228.9609931801. The cubic root of 104631643 is about 471.2170704991.

The spelling of 104631643 in words is "one hundred four million, six hundred thirty-one thousand, six hundred forty-three".