194401117 has 4 divisors (see below), whose sum is σ = 197064220. Its totient is φ = 191738016.

The previous prime is 194401111. The next prime is 194401121. The reversal of 194401117 is 711104491.

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

It can be written as a sum of positive squares in 2 ways, for example, as 155600676 + 38800441 = 12474^2 + 6229^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-194401117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194401111) 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, 1331442 + ... + 1331587.

It is an arithmetic number, because the mean of its divisors is an integer number (49266055).

Almost surely, 2^194401117 is an apocalyptic number.

It is an amenable number.

194401117 is a deficient number, since it is larger than the sum of its proper divisors (2663103).

194401117 is an equidigital number, since it uses as much as digits as its factorization.

194401117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2663102.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 194401117 is about 13942.7801029780. The cubic root of 194401117 is about 579.2947402794.

The spelling of 194401117 in words is "one hundred ninety-four million, four hundred one thousand, one hundred seventeen".