199353523 has 2 divisors, whose sum is σ = 199353524. Its totient is φ = 199353522.

The previous prime is 199353463. The next prime is 199353533. The reversal of 199353523 is 325353991.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 199353523 - 2¹⁷ = 199222451 is a prime.

It is not a weakly prime, because it can be changed into another prime (199353533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99676761 + 99676762.

It is an arithmetic number, because the mean of its divisors is an integer number (99676762).

Almost surely, 2^199353523 is an apocalyptic number.

199353523 is a deficient number, since it is larger than the sum of its proper divisors (1).

199353523 is an equidigital number, since it uses as much as digits as its factorization.

199353523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 109350, while the sum is 40.

The square root of 199353523 is about 14119.2607101080. The cubic root of 199353523 is about 584.1727641034.

The spelling of 199353523 in words is "one hundred ninety-nine million, three hundred fifty-three thousand, five hundred twenty-three".