52142197 has 2 divisors, whose sum is σ = 52142198. Its totient is φ = 52142196.

The previous prime is 52142191. The next prime is 52142239. The reversal of 52142197 is 79124125.

52142197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39425841 + 12716356 = 6279^2 + 3566^2 .

It is a cyclic number.

It is not a de Polignac number, because 52142197 - 2¹⁵ = 52109429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52142191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26071098 + 26071099.

It is an arithmetic number, because the mean of its divisors is an integer number (26071099).

Almost surely, 2^52142197 is an apocalyptic number.

It is an amenable number.

52142197 is a deficient number, since it is larger than the sum of its proper divisors (1).

52142197 is an equidigital number, since it uses as much as digits as its factorization.

52142197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 31.

The square root of 52142197 is about 7220.9554077006. The cubic root of 52142197 is about 373.5910315997.

The spelling of 52142197 in words is "fifty-two million, one hundred forty-two thousand, one hundred ninety-seven".