194105417 has 6 divisors (see below), whose sum is σ = 213355674. Its totient is φ = 176459360.

The previous prime is 194105413. The next prime is 194105419. The reversal of 194105417 is 714501491.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 121242121 + 72863296 = 11011^2 + 8536^2 .

It is not a de Polignac number, because 194105417 - 2² = 194105413 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194105413) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 801968 + ... + 802209.

It is an arithmetic number, because the mean of its divisors is an integer number (35559279).

Almost surely, 2^194105417 is an apocalyptic number.

It is an amenable number.

194105417 is a deficient number, since it is larger than the sum of its proper divisors (19250257).

194105417 is a wasteful number, since it uses less digits than its factorization.

194105417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604199 (or 1604188 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 194105417 is about 13932.1720130064. The cubic root of 194105417 is about 579.0008730025. Note that the first 3 decimals are identical.

The spelling of 194105417 in words is "one hundred ninety-four million, one hundred five thousand, four hundred seventeen".