194088313 has 2 divisors, whose sum is σ = 194088314. Its totient is φ = 194088312.

The previous prime is 194088299. The next prime is 194088319. The reversal of 194088313 is 313880491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100540729 + 93547584 = 10027^2 + 9672^2 .

It is a cyclic number.

It is not a de Polignac number, because 194088313 - 2¹⁷ = 193957241 is a prime.

It is not a weakly prime, because it can be changed into another prime (194088319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97044156 + 97044157.

It is an arithmetic number, because the mean of its divisors is an integer number (97044157).

Almost surely, 2^194088313 is an apocalyptic number.

It is an amenable number.

194088313 is a deficient number, since it is larger than the sum of its proper divisors (1).

194088313 is an equidigital number, since it uses as much as digits as its factorization.

194088313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 194088313 is about 13931.5581684175. The cubic root of 194088313 is about 578.9838658834.

The spelling of 194088313 in words is "one hundred ninety-four million, eighty-eight thousand, three hundred thirteen".