538052197 has 2 divisors, whose sum is σ = 538052198. Its totient is φ = 538052196.

The previous prime is 538052189. The next prime is 538052201. The reversal of 538052197 is 791250835.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 397842916 + 140209281 = 19946^2 + 11841^2 .

It is a cyclic number.

It is not a de Polignac number, because 538052197 - 2³ = 538052189 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (538052107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269026098 + 269026099.

It is an arithmetic number, because the mean of its divisors is an integer number (269026099).

Almost surely, 2^538052197 is an apocalyptic number.

It is an amenable number.

538052197 is a deficient number, since it is larger than the sum of its proper divisors (1).

538052197 is an equidigital number, since it uses as much as digits as its factorization.

538052197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 538052197 is about 23195.9521684280. The cubic root of 538052197 is about 813.3450033972.

The spelling of 538052197 in words is "five hundred thirty-eight million, fifty-two thousand, one hundred ninety-seven".