194500573 has 2 divisors, whose sum is σ = 194500574. Its totient is φ = 194500572.

The previous prime is 194500517. The next prime is 194500591. The reversal of 194500573 is 375005491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 156825529 + 37675044 = 12523^2 + 6138^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-194500573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194500973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97250286 + 97250287.

It is an arithmetic number, because the mean of its divisors is an integer number (97250287).

Almost surely, 2^194500573 is an apocalyptic number.

It is an amenable number.

194500573 is a deficient number, since it is larger than the sum of its proper divisors (1).

194500573 is an equidigital number, since it uses as much as digits as its factorization.

194500573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 194500573 is about 13946.3462240115. The cubic root of 194500573 is about 579.3935128862.

The spelling of 194500573 in words is "one hundred ninety-four million, five hundred thousand, five hundred seventy-three".