523630193 has 2 divisors, whose sum is σ = 523630194. Its totient is φ = 523630192.

The previous prime is 523630189. The next prime is 523630201. The reversal of 523630193 is 391036325.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 508637809 + 14992384 = 22553^2 + 3872^2 .

It is a cyclic number.

It is not a de Polignac number, because 523630193 - 2² = 523630189 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (523630123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261815096 + 261815097.

It is an arithmetic number, because the mean of its divisors is an integer number (261815097).

Almost surely, 2^523630193 is an apocalyptic number.

It is an amenable number.

523630193 is a deficient number, since it is larger than the sum of its proper divisors (1).

523630193 is an equidigital number, since it uses as much as digits as its factorization.

523630193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580, while the sum is 32.

The square root of 523630193 is about 22882.9673119550. The cubic root of 523630193 is about 806.0120973623.

The spelling of 523630193 in words is "five hundred twenty-three million, six hundred thirty thousand, one hundred ninety-three".