194104563 has 12 divisors (see below), whose sum is σ = 260059464. Its totient is φ = 128779200.

The previous prime is 194104549. The next prime is 194104577. The reversal of 194104563 is 365401491.

It is an interprime number because it is at equal distance from previous prime (194104549) and next prime (194104577).

It is not a de Polignac number, because 194104563 - 2⁸ = 194104307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (194104523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 219883 + ... + 220763.

It is an arithmetic number, because the mean of its divisors is an integer number (21671622).

Almost surely, 2^194104563 is an apocalyptic number.

194104563 is a deficient number, since it is larger than the sum of its proper divisors (65954901).

194104563 is an frugal number, since it uses more digits than its factorization.

194104563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426 (or 1155 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 194104563 is about 13932.1413644852. The cubic root of 194104563 is about 579.0000238634. Note that the first 4 decimals are identical.

The spelling of 194104563 in words is "one hundred ninety-four million, one hundred four thousand, five hundred sixty-three".