194530313 has 4 divisors (see below), whose sum is σ = 195015828. Its totient is φ = 194044800.

The previous prime is 194530307. The next prime is 194530319. The reversal of 194530313 is 313035491.

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

It is an interprime number because it is at equal distance from previous prime (194530307) and next prime (194530319).

It can be written as a sum of positive squares in 2 ways, for example, as 87759424 + 106770889 = 9368^2 + 10333^2 .

It is a cyclic number.

It is not a de Polignac number, because 194530313 - 2⁶ = 194530249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194530319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242156 + ... + 242957.

It is an arithmetic number, because the mean of its divisors is an integer number (48753957).

Almost surely, 2^194530313 is an apocalyptic number.

It is an amenable number.

194530313 is a deficient number, since it is larger than the sum of its proper divisors (485515).

194530313 is an equidigital number, since it uses as much as digits as its factorization.

194530313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485514.

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 194530313 is about 13947.4124123437. The cubic root of 194530313 is about 579.4230419936.

The spelling of 194530313 in words is "one hundred ninety-four million, five hundred thirty thousand, three hundred thirteen".