104745643 has 4 divisors (see below), whose sum is σ = 104874048. Its totient is φ = 104617240.

The previous prime is 104745629. The next prime is 104745647. The reversal of 104745643 is 346547401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104745643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 104745599 and 104745608.

It is not an unprimeable number, because it can be changed into a prime (104745647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62971 + ... + 64612.

It is an arithmetic number, because the mean of its divisors is an integer number (26218512).

Almost surely, 2^104745643 is an apocalyptic number.

104745643 is a deficient number, since it is larger than the sum of its proper divisors (128405).

104745643 is an equidigital number, since it uses as much as digits as its factorization.

104745643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128404.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 104745643 is about 10234.5318896372. The cubic root of 104745643 is about 471.3881444585.

The spelling of 104745643 in words is "one hundred four million, seven hundred forty-five thousand, six hundred forty-three".