538449193 has 2 divisors, whose sum is σ = 538449194. Its totient is φ = 538449192.

The previous prime is 538449157. The next prime is 538449203. The reversal of 538449193 is 391944835.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 317837584 + 220611609 = 17828^2 + 14853^2 .

It is a cyclic number.

It is not a de Polignac number, because 538449193 - 2⁹ = 538448681 is a prime.

It is a super-3 number, since 3×538449193³ (a number of 27 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (538449893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269224596 + 269224597.

It is an arithmetic number, because the mean of its divisors is an integer number (269224597).

Almost surely, 2^538449193 is an apocalyptic number.

It is an amenable number.

538449193 is a deficient number, since it is larger than the sum of its proper divisors (1).

538449193 is an equidigital number, since it uses as much as digits as its factorization.

538449193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 466560, while the sum is 46.

The square root of 538449193 is about 23204.5080318459. The cubic root of 538449193 is about 813.5449934926.

The spelling of 538449193 in words is "five hundred thirty-eight million, four hundred forty-nine thousand, one hundred ninety-three".