104550643 has 2 divisors, whose sum is σ = 104550644. Its totient is φ = 104550642.

The previous prime is 104550583. The next prime is 104550679. The reversal of 104550643 is 346055401.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104550643 is a prime.

It is not a weakly prime, because it can be changed into another prime (104550143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52275321 + 52275322.

It is an arithmetic number, because the mean of its divisors is an integer number (52275322).

Almost surely, 2^104550643 is an apocalyptic number.

104550643 is a deficient number, since it is larger than the sum of its proper divisors (1).

104550643 is an equidigital number, since it uses as much as digits as its factorization.

104550643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 104550643 is about 10225.0008801956. Note that the first 3 decimals coincide. The cubic root of 104550643 is about 471.0954424231.

The spelling of 104550643 in words is "one hundred four million, five hundred fifty thousand, six hundred forty-three".